BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Image-guided radiotherapy using active pixel technology DTSTART;VALUE=DATE-TIME:20080902T135000Z DTEND;VALUE=DATE-TIME:20080902T141000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-133@cern.ch DESCRIPTION:Speakers: OSMOND\, John ()\nThe intelligence\, read-out speed\ , radiation hardness and large size of CMOS active pixel sensors (APS) giv es them a potential advantage over current radiotherapy verification syst ems. This work investigates the feasibility of using an APS to image the m egavoltage treatment beam produced by a linear accelerator\, and demonstra tes the logic which may be used to evaluate treatment and track motion. A CMOS APS was incorporated into an imaging system\, and anatomical imaging\ , resolution and contrast were evaluated. Two algorithms were used to dete rmine the field-area\, delivered dose and the position of collimator leav es in an intensity-modulated radiotherapy treatment. Results agreed with t he prescription to within a single frame for dose delivery\, and 0.03 cm f or the position of collimator leaves. Such a system therefore shows potent ial for online verification.\n\nhttp://indico.cern.ch/contributionDisplay. py?contribId=133&sessionId=18&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=133&sessionId=1 8&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A high throughput\, multi -channel photon counting detector with p icosecond timing DTSTART;VALUE=DATE-TIME:20080903T165000Z DTEND;VALUE=DATE-TIME:20080903T171000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-132@cern.ch DESCRIPTION:Speakers: Dr. LAPINGTON\, Jon (University of Leicester)\nHigh throughput photon counting with high time resolution is a niche applicatio n area where vacuum tube technologies can still outperform solid state dev ices. Applications in the life sciences will benefit greatly from performa nce enhancements both in event timing accuracy and detector throughput. Th e goal of the HiContent project is to develop a detector system specifical ly designed for optical proteomics\, capable of high content (multi-parame tric) analysis at high throughput. The detector combines multi-channel\, h igh time resolution photon counting in a single miniaturized detector syst em with integrated multi-channel ASIC electronics with up to 1024 parallel counting channels and 20 picosecond time resolution. We describe the dete ctor design and discuss the current status of the HiContent project and pr esent the results from a 64 channel prototype system.\n\nhttp://indico.cer n.ch/contributionDisplay.py?contribId=132&sessionId=30&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=132&sessionId=3 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A novel large-volume spherical detector with proportional amplific ation read-out DTSTART;VALUE=DATE-TIME:20080904T135000Z DTEND;VALUE=DATE-TIME:20080904T141000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-131@cern.ch DESCRIPTION:Speakers: GIOMATARIS\, Ioanis (Centre d'Etudes de Saclay (CEA- Saclay))\nA new type of radiation detector based in the spherical geometry is presented. The detector consists of large spherical gas volume with ce ntral electrode and radial electric field. Charges deposited in the drift volume are drifting to the central sensor where are amplified and collecte d. We introduce a new spherical proportional sensor located at the center of curvature acting as a proportional amplification structure. It allows t o reach high gas gains and operates from low to high gas pressure. Signal development and the absolute amplitude of the response are consistent with predictions. Sub-keV energy threshold with good energy resolution is achi eved. This simple and robust structure allows to read large volumes with a single read-out channel. The detector performance presently achieved is a lready dose to fulfill the demands of many challenging projects from low e nergy neutrino physics to dark matter detection with applications in neutr on\, alpha\, gamma spectroscopy.\n\nhttp://indico.cern.ch/contributionDisp lay.py?contribId=131&sessionId=34&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=131&sessionId=3 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Radiation Hardness Studies of Polycrystalline & Single-crystal Che mical Vapor Deposition Diamond for High Luminosity Tracking Detectors DTSTART;VALUE=DATE-TIME:20080904T105000Z DTEND;VALUE=DATE-TIME:20080904T111000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-130@cern.ch DESCRIPTION:Speakers: KAGAN\, Harris (Ohio State University)\nWith the com missioning of the LHC expected in 2008\, and the LHC upgrades expected in 2012\, ATLAS and CMS are planning for detector upgrades which require radi ation hard technologies. Chemical Vapor Deposition (CVD) diamond has been used extensively in beam conditions monitors as the innermost detectors in the highest radiation areas of BaBar\, Belle and CDF and is now planned f or all LHC experiments. This material is now being discussed as an alterna te sensor material for use very close to the interaction region of the sup er LHC where the most extreme radiation conditions will exist. Recently th e RD42 collaboration constructed\, irradiated and tested polycrystalline a nd single-crystal chemical vapor deposition diamond detectors to the highe st fluences available. In this paper we present beam test results of chemi cal vapor deposition diamond up to fluences of 1.8 × 10^16 protons/cm2 wh ich shows that both polycrystalline and single-crystal chemical vapor depo sition diamonds follow a single damage curve allowing one to extrapolate t heir performance as a function of dose. We will also present the beam test results of irradiated diamond strip detectors which function quite well a fter a fluence of 1.5×10^15 p/cm2.\n\nhttp://indico.cern.ch/contributionD isplay.py?contribId=130&sessionId=32&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=130&sessionId=3 2&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Wavelength shifting fibre neutron image detector with a fibre opti c taper for a high spatial resolution DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-137@cern.ch DESCRIPTION:Speakers: Dr. NAKAMURA\, Tatsuya ()\nAn effective pixel size o f a two-dimensional wavelength shifting fibre (WLSF) neutron image detecto r was improved from 0.5 mm down to 0.17 mm with implementing a fibre optic taper (FOT). The main part of the prototype detector consisted with a thi n ZnS/6LiF screen\, the FOT\, and the crossed WLSF ribbons for x and y coo rdinate. The WLSF image detector had 16 x 16 fibre channels and the light signals in each fibre were read out individually. The FOT that was made ou t of fine glass fibres with a taper ratio of 3.1 was implemented in betwee n a scintillator screen and the WLS fibres\, which worked as an image magn ifier. The original detector that equipped with a scintillator screen with out a FOT exhibited a spatial resolution of around 0.8 mm. The spatial res olution of this detector was dominated with a light disperse in the screen and the side length of a fibre of 0.5 mm. The prototype detector equipped with the FOT measured a narrow neutron beam with a finer pixel size whils t the same WLSF were used for readout. This result indicated a possibility to improve the effective pixel size / spatial resolution with a FOT devic e. This kind of detector would be quite unique and useful for energy-selec tive neuron radiography at a pulsed neutron source because of its neutron counting capability.\n\nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=137&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=137&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Radiation detection and readout based on the latchup effect DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-135@cern.ch DESCRIPTION:Speakers: Dr. VILLANI\, Giullio (Rutherford Appleton Laborator y)\nAn innovative circuit topology for solid-state pixel detectors based o n latch up effect is described. This effect\, normally considered detrimen tal in CMOS devices when triggered by SEU or external radiation\, is explo ited in solid state electronic switches (e.g. thyristor and SCRs). Here it is proposed to use this effect as part of a building block for low power\ , low noise\, fast and much simplified particle and radiation detection. T he latch up effect is based on a positive feedback triggered in a loop of active devices by an injected charge. Following latch up\, the circuit ret ains its final state until reset and the next cycle of readout is started. A detector prototype with sensitivity of approximately 1pC based upon com mercial components was built and tested confirming the working principle. A new prototype with increased charge sensitivity is currently being inves tigated in a commercial deep-submicron CMOS technology. A further improvem ent with the possibility of accurately selecting the threshold of ignition is currently being investigated. It is based on commercially available MO S transistors\, routinely used as building blocks for digital memory cells (i.e. EPROM or FLASH). A prototype using commercial components is being b uilt to validate the concept and to understand the limitations. Simulation s and measurements results will be presented. This approach in principle c ould greatly simplify the readout of particle and radiation detectors\, as most of the standard blocks\, like charge amplifier\, buffers or comparat or\, are implemented using fewer programmable devices.\n\nhttp://indico.ce rn.ch/contributionDisplay.py?contribId=135&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=135&sessionId=4 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Comparison of the data obtained by PEPT technique for stationary a nd rotating particle on two detectors DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-134@cern.ch DESCRIPTION:Speakers: Dr. SADRMOMTAZ\, Alireza ()\nThe technique of positr on emission particle tracking (PEPT) was developed at the Birmingham Unive rsity and has proved an extremely powerful tool for studying flow processe s inside real laboratory-scale process equipment. In PEPT\, a single radio actively-labelled tracer particle is tracked by detecting simultaneously. Routine studies use the ADAC Forte positron camera consisting of two plann er gamma camera heads each containing a crystal of sodium iodide 50*40 cm2 and 16 cm thick operated in coincidence. Recently the University of Birmi ngham has acquired the ECAT scanner consists of 32 detector buckets. Each bucket comprises 4 bismuth germanate crystals each subdivided into an 8x4 array of small detecting elements\, so that in total the scanner consists of 8 rings each of 512 elements. This paper presents the initial compariso n between the ADAC and ECAT scanner data obtained from the PEPT algorithm. For the stationary point source\, the precision in location will be appro ximately 10 times better than obtained with the ADAC camera. Fast moving p articles with speed of 2 m/s can be located with an accuracy of 2mm while the corresponding value is found 0.6mm for ADAC camera. Since for PEPT 3D operation is better and the septa couldn't easily be removed from the ECAT 931 gantry so it is suggested that the configuration of the detector to b e changed into a new frame.\n\nhttp://indico.cern.ch/contributionDisplay.p y?contribId=134&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=134&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Gamma-ray tracking and background suppression in the planned germa nium array of DESPEC: a comparative analysis DTSTART;VALUE=DATE-TIME:20080902T101000Z DTEND;VALUE=DATE-TIME:20080902T103000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-139@cern.ch DESCRIPTION:Speakers: Mr. KHAPLANOV\, Anton ()\nNovel techniques of gamma- ray tracking and imaging are employed for the new generation of nuclear ga mma-ray spectrometers. As a prominent example of this approach the advance d gamma tracking array AGATA will soon start operating in its prototype ve rsion. Another large gamma-tracking array is currently being designed for the needs of the DESPEC NUSTAR collaboration. It should cover all types of decay studies with implanted radioactive beams. In order to push the limi ts of the gamma-ray spectroscopy to the domain of the exotic nuclei close to the borderlines of stability\, low count rates and high backgrounds sho uld be considered. For this purpose a new gamma-ray tracking algorithm TAN GO was developed featuring identification of the photon escape events whic h allows achieving high Peak/Total values. Imaging capabilities of the arr ay will be exploited in order to correlate the decay photons with the impl antation positions\, thus allowing photon tagging\, and ambient gamma-ray background suppression. Segmented HPGe planar and coaxial detectors are co nsidered for the physical realization of the array. A comprehensive analys is of the tracking and background suppression capabilities will be present ed along with a comparison between different proposed configurations.\n\nh ttp://indico.cern.ch/contributionDisplay.py?contribId=139&sessionId=50&con fId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=139&sessionId=5 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:CMS Tracker alignment strategy and first results obtained from cos mic muon tracks DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-138@cern.ch DESCRIPTION:Speakers: OLZEM\, Jan (I. Physikalisches Institut (B))\nThe al l-silicon design of the CMS Tracker poses new challenges in aligning the s ystem with more than 15000 independent modules. For optimal track-paramete r resolution\, the position and orientation of its modules need to be dete rmined with a precision of better than few dozens of micrometers. Starting with the survey measurements and corrections provided by the hardware ali gnment system\, we can achieve the ultimate precision with data from the s ilicon modules traversed in-situ by charged particles. Several implementat ions of statistical algorithms allow us to solve the optimization problem with the required accuracy in manageable time. We describe survey measurem ents and experience with the hardware alignment system. We discuss selecti on of data samples used for track based alignment and present results from Monte-Carlo studies. First CMS Tracker alignment analysis results with co smic track data will be given.\n\nhttp://indico.cern.ch/contributionDispla y.py?contribId=138&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=138&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Fabrication and simulation of Novel Ultra Thin 3D Silicon Detector - Plasma Diagnostics DTSTART;VALUE=DATE-TIME:20080903T092000Z DTEND;VALUE=DATE-TIME:20080903T094000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-24@cern.ch DESCRIPTION:Speakers: Dr. PELLEGRINI\, Giulio (Centro Nacional de Microele ctronica CNM-IMB-CSIC)\nA novel ultra thin silicon detector called U3DTHIN has been designed and built for applications that range from neutral part icle analyzers (NPA) used in Corpuscular Diagnostics of High Temperature P lasma to very low X-Ray spectroscopy. The main purpose of this detector is to provide a state-of-the-art solution for the upgrade of the current det ector system of the NPAs at JET and also to pave the road for the future d etection systems of the ITER experimental reactor. Currently the NPAs are using very thin scintillator - photomultiplier tube\, and their main drawb acks are poor energy resolution\, intrinsic scintillator nonlinearity\, an d relative low count rate capability and finally poor signal-to-background discrimination for the low energy channels. The proposed new U3DTHIN dete ctor is based on very thin sensitive substrate which will provide nearly 1 00% detection efficiency for ions and at the same time very low sensitivit y for the neutron and gamma background\n\nhttp://indico.cern.ch/contributi onDisplay.py?contribId=24&sessionId=25&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=24&sessionId=25 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Development of new Atlas Pixel front-end IC for upgraded LHC lumin osity DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-25@cern.ch DESCRIPTION:Speakers: Dr. BARBERO\, Marlon (Physikalisches Institute\, Uni versitaet Bonn)\nA new pixel Front-End (FE) IC is being developed in a 130 nm technology for use in the upgraded Atlas pixel detector. The new pixel FE will be made of smaller pixels (50x250/200um vs. 50x400um for the prese nt FE\, FE-I3)\, a much improved active area over inactive area ratio\, an d a new analog pixel chain tuned for low power and new detector input capa citance. The higher luminosity for which this IC is tuned implies a comple te redefinition of the digital architecture logic\, which will not be base d on End-of-Column data buffering but on local pixel logic and local pixel data storage. An overview of the new FE will be given with particular emp hasis on the new digital logic architecture and possible architecture vari ations.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=25&sessi onId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=25&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Studies on Charge Collection Efficiencies for Planar Silicon Detec tors after Doses up to 10e15 neq/cm2 DTSTART;VALUE=DATE-TIME:20080904T092000Z DTEND;VALUE=DATE-TIME:20080904T094000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-26@cern.ch DESCRIPTION:Speakers: ALLPORT\, Phil (U. of Liverpool)\nPlanar\, segmented silicon sensors are used for the tracker and vertex detectors for high en ergy physics experiments at the Large Hadron Collider (LHC) because of the ir unsurpassed performance in terms of granularity\, resolution and speed while offering relatively low mass. The planned luminosity upgrade of the Large Hadron Collider at CERN (Super-LHC\, sLHC) will provide a challengin g environment for these silicon tracking and vertexing detector systems. F or the regions where silicon micro-strip detectors are envisaged in the sL HC ATLAS experimental upgrade\, the expected particle fluence at the inner most microstrip layer is up to 1x10^15 1 MeV neutron equivalent particles (neq) per square centimetre over the anticipated 5 year lifespan of the ex periment\, making the radiation hardening of the silicon detectors more im portant than ever.\n\nWe present studies of the charge collection efficien cies of various readout geometries ( p+ strip in n-bulk\, n+ strip in n-bu lk\, and n+ strip in p-bulk) as well as substrate types (float zone or mag netic Czochralski) after neutron irradiation up to 1x10^15 neq per square centimetre . The charge collection efficiency measurements have been carri ed out using 128 channel analogue\, high-speed (40MHz) electronics and a S trontium electron source. These measurements provide a reference of the ex pected collected charge by segmented devices at these extreme doses and gi ve input to the design of the readout electronics necessary for the variou s micro-strip tracking subsystems planned to be used at the Super-LHC.\n\n http://indico.cern.ch/contributionDisplay.py?contribId=26&sessionId=32&con fId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=26&sessionId=32 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:In search of exotic events for positron emison tomography: a GAMMA SPHERE experiment DTSTART;VALUE=DATE-TIME:20080904T163000Z DTEND;VALUE=DATE-TIME:20080904T165000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-27@cern.ch DESCRIPTION:Speakers: Dr. CHIN\, Mary ()\nTHE GAMMASPHERE is a unique faci lity for gamma-ray spectroscopy. The spherical array of 110 Compton-suppre ssed high-purity germanium (HPGe) detectors features a powerful combinatio n of high sensitivity\, resolution\, granularity and efficiency. Many quan tities previously not measurable became possible\; breakthroughs continue to emerge across the fields of nuclear physics\, particle physics and astr ophysics. A GAMMASPHERE experiment to study rare events for positron emiss ion tomography (PET) is an unprecedented luxury. This is true not only in terms of the solid angle and the gamma-ray detection characteristics\, but also in terms of the amount of data that may be collected. The GAMMASPHER E provides multi-dimensional data hit-by-hit. We report our experiment car ried out at the Argonne National Laboratory. Instead of the beam lines use d for nuclear and particle physics\, we used fluorine-18 in the form of fl uoro-2-deoxyglucose (FDG\, the most commonly used PET agent) as the radiat ion source. The experiment was repeated with biological samples of varying oxygen concentrations. We read the output file byte-by-byte without the u se of sorting or analysis software\, so that each step of the data process ing is completely transparent. We analyse the data hit-by-hit\; no hit is dismissed or filtered out unexamined. We present the multivariate correlat ion between various parameters (e.g. energy\, time and angular correlation ) as well as the breakdown of hit counts into various components (e.g. the number and the location of Compton-suppressed hits per germanium hit). We demonstrate the rare events (such as annihilations emitting gammas which are not colinear\, not 511 keV and even not in pairs) which potentially re volutionalise PET in terms of image reconstruction and molecular imaging.\ n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=27&sessionId=36& confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=27&sessionId=36 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Monolithic Pixel Sensors in 0.15um Fully Depleted SOI Technology DTSTART;VALUE=DATE-TIME:20080905T084000Z DTEND;VALUE=DATE-TIME:20080905T090000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-20@cern.ch DESCRIPTION:Speakers: Dr. CONTARATO\, Devis (Lawrence Berkeley National La boratory)\nA monolithic pixel sensor has been design and fabricated in a n ovel deep-submicron 0.15 micron Silicon-On-Insulator (SOI) CMOS technology . This combines a thin layer of CMOS electronics isolated from a high-resi stivity silicon substrate that can be depleted as in standard reversely-bi ased silicon detectors. The first prototype chip features arrays of analog and digital pixels of 10 micrometer pitch. Results from extensive testing performed with focused infrared lasers and high-energy particle beams are presented. The radiation hardness of the process has been characterised w ith low energy protons and neutrons.\nThe design of a new prototype will b e discussed in relation to its potential applications in high-energy physi cs\, electron microscopy and beam monitoring.\n\nhttp://indico.cern.ch/con tributionDisplay.py?contribId=20&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=20&sessionId=38 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Positron spectrometer of MEG experiment at PSI DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-21@cern.ch DESCRIPTION:Speakers: Prof. KISELEV\, Oleg ()\nA new type of positron spec trometer for the MEG experiment has been developed at the Paul Scherrer In stitute (PSI). The main goal of the experiment is a search for a lepton fl avor violating decay mu+ → e+ gamma with a sensitivity of 10**-13 in bra nching ratio in order to check the predictions of the supersymmetric exten sions of the standard model. Measurements of the reactions beyond the stan dard model require specially designed detectors. The MEG positron spectrom eter consists of a special superconducting solenoidal magnet and an ultima te low-mass drift chamber system. Recently\, few commissioning experiments were performed. The spectrometer design and the first results of the comm issioning runs will be presented.\n\nhttp://indico.cern.ch/contributionDis play.py?contribId=21&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=21&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Improved spatial resolution analysis of micron resultion silicon p ixel detectors based on beam and laser tests DTSTART;VALUE=DATE-TIME:20080905T090000Z DTEND;VALUE=DATE-TIME:20080905T092000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-22@cern.ch DESCRIPTION:Speakers: Dr. KODYS\, Peter (Charles University)\nA new genera tion of track detectors for high energy physics are being designed for tra ck recognition with submicron precision. Pixel detectors with micron resol ution are a basic pre-requisite of such designs. With such precise detecto rs\, however\, the determination of spatial resolution becomes complicated because both multiple scattering and intrinsic detector errors contribute equally significantly to tracking errors.\n\nThis note is based on laser tests using pulsed 682 nm laser light and on data of DEPFET beam tests at CERN in 2006 and 2007. We used a new method to separate the contributions of intrinsic resolution\, multiple scattering and track uncertainty to imp act point prediction error\, and used it in track analysis of beam tests. We compared several methods of impact point prediction correction (eta-cor rection) based either on beam test tracks or on laser matrix scans for a r ange of laser pulse energies. We show about 20% improvement in the resolut ions calculated from the data of two DEPFET beam tests with different dete ctor setup. We also show that eta-correction derived from laser tests can be applied in tracking.\n\nhttp://indico.cern.ch/contributionDisplay.py?co ntribId=22&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=22&sessionId=38 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The effect of protons on the performance of swept-charge devices DTSTART;VALUE=DATE-TIME:20080903T125000Z DTEND;VALUE=DATE-TIME:20080903T131000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-23@cern.ch DESCRIPTION:Speakers: Prof. SMITH\, David ()\nThe e2v technologies CCD54\, or swept-charge device (SCD) has been extensively radiation tested for us e in the Chandrayaan-1 X-ray Spectrometer (C1XS) instrument\, to be launch ed as part of the Indian Space Research Organisation (ISRO) Chandrayaan-1 payload in 2008. The principle use of the SCD is in X-ray fluorescence (XR F) applications\, the device providing a relatively large collecting area of 1.1 cm2\, and achieving near Fano-limited spectroscopy at -15oC\, a tem perature that is easily obtained using a thermoelectric cooler (TEC). This paper describes the structure and operation of the SCD and details the me thodology and results obtained from two proton irradiation studies carried out in 2006 and 2008 respectively\, to quantify the effects of proton irr adiation on the operational characteristics of the device. The analysis co ncentrates on the degradation of the measured FWHM of various elemental li nes and quantifies the effects of proton fluence on the observed XRF spect ra from mineralogical target samples.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=23&sessionId=27&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=23&sessionId=27 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A protype X-ray imaging system using pixelated energy resolving de tectors DTSTART;VALUE=DATE-TIME:20080903T090000Z DTEND;VALUE=DATE-TIME:20080903T092000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-28@cern.ch DESCRIPTION:Speakers: Prof. HANSSON\, Conny ()\nA prototype X-ray imaging system\, using the principle of tomographic energy dispersive diffraction imaging (TEDDI) has been developed at the University of Manchester's Schoo l of Materials. The non-destructive 3D imaging system makes use of a state of the art collimator array and a pixelated Si energy resolving detector. A proof of concept for the system has successfully been carried out using metal\, polymer and organic samples being exposed to a white X-ray beam f rom a synchrotron source. The new rapid TEDDI system is limited to thin\, low density materials due to the low stopping power of Si at higher X-ray energies. In this presentation the results of substituting Si for CdZnTe a s the active detection element and resulting limitations to the key parame ters of energy resolution and count rate\, for the detectors will be prese nted. A new ASIC and detector system for the rapid TEDDI measurements has been designed using our initial findings. This design will also be discuss ed.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=28&sessionId =25&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=28&sessionId=25 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:X-ray and Gamma-ray Detectors for Astrophysics DTSTART;VALUE=DATE-TIME:20080901T152000Z DTEND;VALUE=DATE-TIME:20080901T160000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-8@cern.ch DESCRIPTION:Speakers: Prof. KNÖDLSEDER\, Jürgen ()\nPosition Sensitive D etectors play a key role in X-ray and Gamma-ray Astronomy\nas they allow i maging and spectroscopy of astrophysical sources throughout\nthe Universe. At these high energies\, photons are generally characterized\nindividuall y\, requiring sensitive and rapid low-noise charge amplifiers to extract\n the information. In this review I will describe the detector technologies that are\ncurrently employed in this fields and outline the challenges and requirements\nfor the future.\n\nhttp://indico.cern.ch/contributionDispla y.py?contribId=8&sessionId=11&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=8&sessionId=11& confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The CMS Tracker Detector Control System DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-120@cern.ch DESCRIPTION:Speakers: SHAH\, Yousaf ()\nThe CMS Silicon Strip Tracker is b y far the largest detector ever built in this technology\, with an active surface of of 206 m2\, 9648128 readout channels on 75376 APV front-end chi ps\, 15232 silicon modules\, built out of 24328 sensors. The Tracker Contr ol System (TCS) is a distributed control software to operate ~2000 power s upplies for the silicon modules of the CMS Tracker and monitor its environ mental sensors. The TCS receives information from about 103 environmental probes (temperature and humidity sensors) located inside the detector volu me and driven through the Programmable Logic Controllers of the Tracker Sa fety System (TSS)\, 105 parameters read out via the data acquisition syste m from dedicated chips in the front-end electronics\, and 105 parameters f rom the power supply modules. Such information is monitored\, evaluated an d correlated with the detector layout\; actions are taken under specific c onditions\; the system includes 10 PCs and 10 PLCs that are continuously r unning the necessary control and safety routines. The DCS is a fundamental tool for the Tracker operation and its safety\; the first operation exper ience will be presented at the conference.\n\nhttp://indico.cern.ch/contri butionDisplay.py?contribId=120&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=120&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Commissioning of the atlas pixel detector DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-121@cern.ch DESCRIPTION:Speakers: GOLLING\, Tobias (LBNL)\nThe Pixel Detector is a key component of the inner tracking detector of ATLAS\, constructed to allow precision tracking of charged particles and vertexing. The ATLAS pixel det ector system contains approximately 80 million channels and 1744 detector modules\, has been already installed in its final position inside ATLAS an d is ready for the first beams of the Large Hadron Collider at CERN. The d etector is being commissioned with cosmic rays.The overall status of the d etector will be presented\, emphasizing its performance measured during co mmissioning and early operation.\n\nhttp://indico.cern.ch/contributionDisp lay.py?contribId=121&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=121&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Electrical properties of the sensitive side in Si edgeless strip d etectors developed for TOTEM Experiment DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-122@cern.ch DESCRIPTION:Speakers: Dr. VERBITSKAYA\, Elena ()\nMicrostrip edgeless sili con detectors have been successfully produced and tested. These detectors are fabricated with standard planar technology\, reach full sensitivity in 50 m from the cut edge and can operate with high bias at room temperat ure. These detectors employ a newly conceived terminating structure\, whic h\, although is extremely reduced with respect to the conventional ones\, still prevents the breakdown and the surface current injection at high bia s. Moreover they are fully efficient up to a fluence of about 1.5x1014 p c m-2\, if operated with moderate cooling. The mass production of these dete ctors for the TOTEM Experiment has been successfully completed. Their inst allation in the Roman Pots is ongoing and will allow the TOTEM Experiment to detect leading protons at 10 from the beam at the LHC.\n\nhttp://ind ico.cern.ch/contributionDisplay.py?contribId=122&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=122&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:GASTONE a new ASIC for the cylindrical GEM Inner Tracker of KLOE e xperiment at DAFNE DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-123@cern.ch DESCRIPTION:Speakers: Dr. RANIERI\, Antonio (INFN Bari)\nA mixed analog-di gital ASIC prototype named GASTONE (GEM Amplifier Shaper Tracking ON Event s) designed in the CMOS AMS 0.35um technology has been developed to specif ically readout the cylindrical GEM inner tracking detector built as improv ement of the KLOE apparatus at the e+e- DAFNE collider. The analog part of the ASIC is characterized by a very low power dissipation of 1.32 mW/chan nel for our specific application and by an equivalent input noise charge ( ENC) of 1200 e- + 45 e-/pF achieved for a supply current of 100 uA in the input transistor. A prototype with only 16 readout channels has been devel oped whereas a final version will implement a total of 64 channels for the final detector readout. The results of the measurements obtained on a cyl indrical mono-dimensional GEM prototype by using cosmic muons and a proton beam test performed at CERN instrumented with GASTONE device\, will be sh own.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=123&session Id=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=123&sessionId=2 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:High spatial resolution probes for neurobiology applications DTSTART;VALUE=DATE-TIME:20080902T163000Z DTEND;VALUE=DATE-TIME:20080902T165000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-124@cern.ch DESCRIPTION:Speakers: Dr. GUNNING\, Deborah (The University of Glasgow)\nP osition-sensitive biological neural networks\, such as the brain and retin a\, require position-sensitive detection methods to identify\, map and stu dy their behaviour. Traditionally\, planar microelectrodes have been empl oyed to record the cells electrical activity\, with device limitations ari sing from the electrodes 2-D nature. Described here is the development an d characterisation of an array of electrically conductive micro-needles ai med at addressing the limitations of planar electrodes. The capability of this array to penetrate neural tissue improves the electrode-cell electri cal interface and allows more complicated\, 3-D networks of neurons\, such as in the brain\, to be studied. State-of-the-art semiconductor fabricat ion techniques were used to etch\, passivate\, conformally metal coat and fill high aspect ratio holes in silicon. These are subsequently transform ed in to needles with conductive tips. This process has enabled the fabri cation of arrays of unprecedented dimensions: 61 hexagonally close-packed electrodes\, up to 150um tall\, with 60um spacing. Electroplating the tun gsten tips with platinum ensures suitable impedance values (~300 kOhm at 1 kHz) for the recording of neuronal signals. Without compromising spatial resolution of the neuronal recordings\, this array adds a new and excitin g dimension to the study of biological neural networks.\n\nhttp://indico.c ern.ch/contributionDisplay.py?contribId=124&sessionId=52&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=124&sessionId=5 2&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A new generation of GEM detectors and their applications DTSTART;VALUE=DATE-TIME:20080901T111000Z DTEND;VALUE=DATE-TIME:20080901T113000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-125@cern.ch DESCRIPTION:Speakers: PESKOV\, Vladimir (Pole Universitaire Leonardo de Vi nci)\nWe have developed a new generation of GEM-like detectors with double layered electrodes instead of commonly used metallic ones: with an inner layer consisting of thin metallic strips and an outer layer made of resist ive grid manufactured by a screen printing technology. By measuring signal s induced by avalanches on the inner strips one can obtain 2-D information about the position of the avalanches. The resistive grid makes the detect or intrinsically spark protected: in the case of sparks the resistive laye r restricts their current and thus the destructive power. The new detector s have several other advantages: they operate at ten times higher gains th an conventional GEMs\, have compact planar geometries\, can operate in ele ctronegative gases and so on\, and this is why we believe that they will f ind a wide range of applications. As examples we will describe results of some experiments\ndemonstrating that new GEMs can be used in RICH and for the readout of noble liquid TPCs.\n\nhttp://indico.cern.ch/contributionDis play.py?contribId=125&sessionId=9&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=125&sessionId=9 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Planar Edgeless Silicon Detectors for the TOTEM Experiment DTSTART;VALUE=DATE-TIME:20080904T111000Z DTEND;VALUE=DATE-TIME:20080904T113000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-127@cern.ch DESCRIPTION:Speakers: Dr. RUGGIERO\, Gennaro (CERN)\nMicrostrip edgeless s ilicon detectors have been successfully produced and tested. These detecto rs are fabricated with standard planar technology\, reach full sensitivity in 50 um from the cut edge and can operate with high bias at room tempera ture.\nThese detectors employ a newly conceived terminating structure\, wh ich\, although is extremely reduced with respect to the conventional ones\ , still prevents the breakdown and the surface current injection at high b ias. Moreover they are fully efficient up to a fluence of about 1.5x1014 p cm-2\, if operated with moderate cooling.\nThe mass production of these d etectors for the TOTEM Experiment has been successfully completed. Their i nstallation in the Roman Pots is ongoing and will allow the TOTEM Experime nt to detect leading protons at 10sigma from the beam at the LHC.\n\nhttp: //indico.cern.ch/contributionDisplay.py?contribId=127&sessionId=32&confId= 19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=127&sessionId=3 2&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Positron emission particle tracking using a modular positron camer a DTSTART;VALUE=DATE-TIME:20080904T171000Z DTEND;VALUE=DATE-TIME:20080904T173000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-128@cern.ch DESCRIPTION:Speakers: Dr. PARKER\, David (University of Birmingham)\nThe t echnique of positron emission particle tracking (PEPT)\, developed at Birm ingham in the early 1990s\, enables a radioactively-labelled tracer partic le to be accurately tracked as it moves between the detectors of a positro n camera. In 1999 the original Birmingham positron camera\, which consist ed of a pair of MWPCs\, was replaced by a system comprising two NaI(Tl) ga mma camera heads operating in coincidence. This system has been successfu lly used for PEPT studies of a wide range of granular and fluid flow proce sses. More recently a modular positron camera has been developed using a number of the BGO block detectors from standard PET scanners (CTI ECAT 930 and 950 series). This camera has flexible geometry\, is transportable\, and is capable of delivering high data rates. This paper presents initial experience of its use in a range of geometries and applications.\n\nhttp: //indico.cern.ch/contributionDisplay.py?contribId=128&sessionId=36&confId= 19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=128&sessionId=3 6&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Development of multi-tubes detectors at the ILL DTSTART;VALUE=DATE-TIME:20080901T113000Z DTEND;VALUE=DATE-TIME:20080901T115000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-129@cern.ch DESCRIPTION:Speakers: Dr. MANZIN\, Guiliana ()\nThe construction of bidime nsional tube-array detectors at the ILL\, in particular the one for the SA NS instrument D22\, allowed to develop a purpose-built charge division ele ctronics and to explore others structures having similar detection princip les. One of these is the so-called Multitube in which\, instead of having independent position sensitive tubes held together by a mechanical support \, the stainless steel tubes are welded on both ends to 2 common flanges\, sharing the same gas volume. Several of these detectors have been built a nd installed\; the instrument IN5 at the ILL will soon be equipped with 12 multitube modules of 32 tubes each\, covering a total sensitive area of a bout 30 m2. Another development is the Monobloc Multitube\, made out of a single Aluminum bloc\, with channels machined by wire-cut EDM\; the channe ls can have almost any shape\, the front window can be a few mm thick and the separation walls between channels can be as thin as 0.5 mm. The first of these detectors will be installed on the new reflectometer FIGARO at th e ILL\, and 2 more will be fabricated\, one for the modernization of D17 a nd another one for the construction of the SANS instrument D33.\n\nhttp:// indico.cern.ch/contributionDisplay.py?contribId=129&sessionId=9&confId=190 99 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=129&sessionId=9 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The GEM-based Neutron detector DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-59@cern.ch DESCRIPTION:Speakers: Dr. KLYACHKO\, Alexadner ()\nThe development and tes ting of a large area high count rate position-sensitive neutron detector b ased on Gas Electron Multiplier (GEM) is reported. With the use of 3He:CF4 gas mixture at atmospheric pressure\, the detector is anticipated to have ~50% efficiency for cold neutrons\, 5-10 mm spatial resolution\, and to h andle up to 10^6 cm-2s-1 count rates\, sufficient for intended application s with thermal and cold neutrons at IUCF Low Energy Neutron Source. A 10x1 0 cm2 prototype detector with a cascaded triple-GEM structure and two-dime nsional crossed-strip readout electrode giving a 4x4 mm2 readout pixel siz e has been fabricated using industrially produced GEM foils and readout PC B. The prototype detector has been tested with electron and X-ray sources and demonstrated spatial resolution of 4 mm (single pixel). Tests of the p rototype with neutron sources are on the way.This work has been supported by the National Science Foundation (under grants DMR-0220560 and DMR-03206 27) and the 21st Century Science and Technology Fund of Indiana (Indiana U niversity).\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=59&s essionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=59&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:X-ray detectors for Astronomy and Space Applications DTSTART;VALUE=DATE-TIME:20080901T164000Z DTEND;VALUE=DATE-TIME:20080901T170000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-58@cern.ch DESCRIPTION:Speakers: Prof. HOLLAND\, Andrew ()\nhttp://indico.cern.ch/con tributionDisplay.py?contribId=58&sessionId=11&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=58&sessionId=11 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:First Testbeam Results from the ISIS1 Detector DTSTART;VALUE=DATE-TIME:20080905T111000Z DTEND;VALUE=DATE-TIME:20080905T113000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-55@cern.ch DESCRIPTION:Speakers: Dr. CUSSANS\, David (University of Bristol)\nThe ISI S (In-Situ charge storage Imaging Sensor) is a monolithic active pixel sen sor with memory cells in each pixel. The memory cells are implemented as a CCD register. The device is a "burst camera" with charge being clocked si multaneously into the registers in each pixel. This makes the ISIS an exce llent sensor for the ILC vertex detector for various reasons. The sensors can be made very thin while still retaining a high S/N ratio. The charge l iberated by the passage of a particle is stored in potential wells inside the pixel and not amplified and sampled except outside the bunch-train\, m aking the device less sensitive to EMI. The ISIS1 is a proof-of-principle ISIS device. In October 2007 we performed tests at the DESY e- beam-line w ith a telescope consisting of 5 ISIS1 sensors. The first test-beam results including S/N and position resolution will be shown.\n\nhttp://indico.cer n.ch/contributionDisplay.py?contribId=55&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=55&sessionId=38 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The CMS pixel detector DTSTART;VALUE=DATE-TIME:20080905T103000Z DTEND;VALUE=DATE-TIME:20080905T105000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-54@cern.ch DESCRIPTION:Speakers: Dr. BLEKMAN\, Freya (Cornell University)\nThe CMS Pi xel Detector consists of three barrel layers closed by two forward/backwar d disks on each side of the interaction region\, and provides a crucial co ntribution to pattern recognition\, primary and secondary vertices reconst ruction\, as well as heavy flavour tagging. The sensors are n-on-n\, with n+ implants on n bulk silicon\, and a cell size of 100x150 um2. The Lorent z drift of electrons inside the magnetic field of 4 T leads to charge spre ading of the order of 150 um for unirradiated sensors of 300 um thickness in the barrel\, therefore the charge is collected typically on more than o ne pixel. In the forward disks charge sharing is obtained by tilting the s ensors by 20 in a turbine-like geometry. A novel technique is presented fo r the reconstruction and simulation of pixel hits. The technique requires a priori knowledge of the track angle\, which makes it suitable for the se cond pass in a two-pass reconstruction algorithm. It was originally develo ped to optimally estimate the coordinates of hits after the detector has b een damaged by radiation\, but it turns out to have superior performance a lso before irradiation.\n\nhttp://indico.cern.ch/contributionDisplay.py?co ntribId=54&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=54&sessionId=38 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A semiconductor compton camera system in SPECT mode DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-57@cern.ch DESCRIPTION:Speakers: Mr. GRINT\, Alexander ()\nThis work describes the de velopment of a dual layer Compton camera [1] to produce a 3D source image with a greater sensitivity than the mechanical collimation technique [2]\, presently used for SPECT (Single Photon Emission Computed Tomography) in medicine. The imaging of low energies is of particular importance as the c urrent isotope of choice for SPECT in medicine is 99mTc\, emitting photons of 140 keV. The Compton camera technique requires good energy resolution and position sensitivity. Segmented semiconductor detectors were selected as they provide excellent energy resolution and with the application of Pu lse Shape Analysis (PSA) [3]\, the ability to determine the position of in teraction beyond that of the detectors segmentation. An initial system of two HPGe planar detectors\, (active volume of each crystal is 60 x 60 x 20 mm3)\, resulted in a poor low energy imaging efficiency due to the crystal thickness. To overcome this\, the front HPGe detector was replaced with a 0.5mm thick double sided silicon strip detector aiming to maximise the fr action of incident gamma rays scattering into the rear detector. Details o f the characterisation measurements of the Silicon and Germanium detectors will be presented. Preliminary imaging results will be shown for the new Silicon/Germanium system and the previous Germanium/Germanium system [4]\, together with experimental details and efficiency comparison of both came ra setups.\n\nReferences \n\n[1] M. Singh & D. Doria - An electrically col limated gamma camera for single photon emission computed tomography\, Med Phys.\, vol. 10 pp. 421-427\, 1983 \n\n[2] H. Anger. A new instrument for mapping gamma-ray emitters. Biology and Medicine Quarterly Report UCRL\, 1 957\, 3653: 38. (University of California Radiation Laboratory\, Berkeley) \n\n[3] K. Vetter\, NIM A 452 (2000) 223 \n\n[4] J. Gillam\, School of Ph ysics & Materials Engineering\, Monash University\, Australia\n\nhttp://in dico.cern.ch/contributionDisplay.py?contribId=57&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=57&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Position sensitivity of the proposed segmented germanium detectors for the DESPEC project DTSTART;VALUE=DATE-TIME:20080902T092000Z DTEND;VALUE=DATE-TIME:20080902T094000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-56@cern.ch DESCRIPTION:Speakers: Mr. KHAPLANOV\, Anton ()\nThe DESPEC HPGe array is a part of the NuSTAR project at FAIR\, Germany. It is aimed at the spectros copy of the decaying exotic nuclei stopped in the micro-strip silicon impl antation detector AIDA. Segmented gamma-ray tracking detectors are propose d for this array in order to maximize detection efficiency and background suppression when searching for very rare events. Two types of detector mod ules -- stacks of 3 16-fold segmented planar crystals and 12- and 16-fold segmented clover detectors -- have been investigated and compared from the point of view of the achievable position resolution using pulse shape ana lysis (PSA). To this end\, detector signals from realistic gamma-ray inter actions have been calculated. These signals were treated by PSA in order t o reconstruct the photon interaction locations. Comparing the initial inte raction locations to the reconstructed ones\, it was found the the double- sided strip planar detector yielded position reconstruction errors at leas t a factor 2 lower than the other detectors considered.\n\nhttp://indico.c ern.ch/contributionDisplay.py?contribId=56&sessionId=50&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=56&sessionId=50 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:3D detectors DTSTART;VALUE=DATE-TIME:20080904T103000Z DTEND;VALUE=DATE-TIME:20080904T105000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-51@cern.ch DESCRIPTION:Speakers: PARZEFALL\, Ulrich (Fakultaet fuer Physik)\nThe lumi nosity upgrade of the LHC to the SLHC will mean a massive increase in radi ation levels for the tracking detectors close to the interaction point. Th e development of ultra-radiation hard silicon detectors is required for th e innermost tracking layers. One option for radiation-hard silicon sensors is the 3D technology\, where columnar electrodes are etched deep into the silicon bulk. This means a short charge collection distance (counteractin g radiation-induced charge trapping)\, and reduces the depletion voltage c ompared to planar sensor designs. We have developed and obtained 3D sensor s from several sources\, and will report on the designs and processing of the sensors. A large number of 3D sensors were studied in probe-station me asurements. Several sensors\, in particular 3D strip designs\, have been c onnected to LHC-speed readout electronics\, and were then tested with an I R-laser system\, with a Sr90-beta-source setup and in a test beam at CERN. We will describe the results from these measurements\, and draw conclusio ns on the maturity of the 3D technology as well as the feasibility to use it for SLHC tracking applications.\n\nhttp://indico.cern.ch/contributionDi splay.py?contribId=51&sessionId=32&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=51&sessionId=32 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The Atlas SCT: Commissioning experience and SLHC Upgrade DTSTART;VALUE=DATE-TIME:20080904T084000Z DTEND;VALUE=DATE-TIME:20080904T090000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-50@cern.ch DESCRIPTION:Speakers: MITREVSKI\, Jovan (Santa Cruz Inst. for Particle Phy s. (SCIPP) - Univ. of Californi)\nThe ATLAS SemiConductor Tracker (SCT) ha s been installed\, and fully connected to electrical\, optical and cooling services. Commissioning has been performed both with calibration data and cosmic ray events. The cosmics were used to align the detector\, measure the hit efficiency and set the timing. The SCT is now ready to take data w hen the LHC turns on this autumn. At the same time\, it is clear that the present ATLAS tracker will need to be renewed for projected luminosity upg rade of the LHC\, the SLHC. This is mainly driven by occupancy and radiati on hardness issues. The new tracker will likely be entirely made of silico n\, with the space of the present SCT largely taken up by detectors with m uch shorter strips. Several large-scale R&D projects on the sensors and mo dule concepts for this upgrade are running\, including sensor and module p rototyping. We will report upon the commissioning experience from the SCT\ , use it to extract valuable lessons for future silicon tracker projects\, and give an up-to-date overview of the status and results of the R&D effo rts for the ATLAS tracker upgrade.\n\nhttp://indico.cern.ch/contributionDi splay.py?contribId=50&sessionId=32&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=50&sessionId=32 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Imaging performances of the DRAGO gamma camera DTSTART;VALUE=DATE-TIME:20080901T170000Z DTEND;VALUE=DATE-TIME:20080901T172000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-53@cern.ch DESCRIPTION:Speakers: Prof. FIORINI\, Carlo (Politecnico di Milano and INF N Italy)\nIn this work\, we present the results of the experimental charac terization of the DRAGO gamma camera\, developed within an Italian INFN pr oject. This camera\, based on the Anger camera topology\, is based on a mo nolithic array of 77 Silicon Drift Detectors (SDDs)\, with an active area of 6.7 cm2\, coupled to a single CsI(Tl) scintillator crystal\, 5mm thick. The use of an array of SDDs allows to achieve a high quantum efficiency w ith respect to photomultiplier tubes and a very low electronics noise comp ared with respect to other conventional silicon photodetectors. The perfor mances achieved in gamma-ray imaging using this camera are reported in thi s work. When imaging a 0.2mm collimated Co-57 source (122keV) a spatial re solution ranging between 0.25mm to 0.5mm has been measured. The depth-of-i nteraction capability of the detector\, thanks also to a maximum likelihoo d reconstruction algorithm\, has been also investigated by imaging a colli mated beam tilted to an angle of 45° with respect to the scintillator sur face.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=53&session Id=11&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=53&sessionId=11 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Characterization of a 1-D perforated diode neutron detector array DTSTART;VALUE=DATE-TIME:20080903T101000Z DTEND;VALUE=DATE-TIME:20080903T103000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-52@cern.ch DESCRIPTION:Speakers: Mr. MCNEIL\, Walter ()\nPerformance of a 4 cm long 3 2 pixel perforated diode neutron detector array is compared to an identica l array of thin-film coated diodes. The perforated neutron detector design has been adapted to a 1-D pixel array capable of 120 micrometer spatial r esolution and counting efficiency greater than 15%. Deep vertical trenches filled with ^6LiF provide outstanding improvement in efficiency over thin -film coated diode designs limited to only 4.5%. The entire system includi ng custom read-out electronics and user interface software is a result of collaborative efforts between Kansas State University\, the University of Tennessee\, and Oak Ridge National Laboratory. This work marks the final p rogressive step before a much larger array of 1024 pixels spanning across 10 cm will be constructed by tiling a 64 pixel sensor specifically for use in small-angle neutron scattering experiments at the Spillation Neutron S ource of Oak Ridge National Laboratory.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=52&sessionId=25&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=52&sessionId=25 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:High-Precision Position Estimation in PET using Artificial Neural Networks DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-115@cern.ch DESCRIPTION:Speakers: MATEO\, Fernando (Universidad Politécnica de Valenc ia)\nTraditionally\, the most popular technique to predict the impact posi tion of gamma photons on a PET detector has been Anger’s logic. However\ , it introduces nonlinearities that compress the light distribution\, redu cing the useful field of view and the spatial resolution\, especially at t he edges of the crystal scintillator. In this work we make use of neural n etworks to address a bias-corrected position estimation from real stimulus obtained from a 2D PET system setup. The preprocessing and data acquisiti on were performed by separate custom boards\, especially designed for this application. The results show that neural networks yield a more uniform f ield of view while improving the systematic error and the spatial resoluti on. Therefore\, they stand as better performing and readily available alte rnative to classic positioning methods.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=115&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=115&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The GLAST Large Area Telescope DTSTART;VALUE=DATE-TIME:20080903T135000Z DTEND;VALUE=DATE-TIME:20080903T141000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-114@cern.ch DESCRIPTION:Speakers: Dr. BALDINI\, Luca ()\nThe Gamma-ray Large Area Spac e Telescope (GLAST) is a next generation high-energy gamma-ray observatory designed to explore the sky over more than four energy decades (20 MeV--3 00 GeV) with unprecedented sensitivity and resolution. The Large Area Tele scope (LAT)\, the main instrument on board GLAST\, is a pair conversion te lescope designed and built exploiting the state of the art in high-energy physics detector technology\; a significant fraction of the advance in sen sitivity (roughly a factor of 30) over the predecessor CGRO-EGRET instrume nt\, is in fact accomplished by means of the largest and by far most compl ex (70 square meters of Silicon Strip Detectors for a total of almost 1 mi llion of channels) Silicon Tracker ever built for a space mission. With th e launch date now firmly established for the beginning of June 2008\, this is a particularly exciting moment for the whole collaboration. The first two months of operation will be devoted to a carefully planned calibration activity\, which will prepare the instrument for the real science data ta king phase\, continuing over the following 5--10 years. The operation expe riences\, as well as the highlights from this initial on-orbit verificatio n phase\, will be presented in this talk.\n\nhttp://indico.cern.ch/contrib utionDisplay.py?contribId=114&sessionId=27&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=114&sessionId=2 7&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Improving Quantum Efficiency and Spectral Resolution of a CCD: Inv estigating Angle of X-ray Incidence DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-89@cern.ch DESCRIPTION:Speakers: Mr. BROWN\, Craig ()\nImproving the quantum efficien cy (QE) and spectral resolution of X-ray sensitive charge-coupled devices (CCDs) for astronomy and planetary science applications is the primary foc us of this work. These improvements are aimed at broadening the energy res ponse of the detectors from 0.2 keV to >15 keV). Extending a the high ener gy response of a MOS (metal-oxide semiconductor) CCD can be achieved by in creasing the depletion depth. High resistivity silicon\, high dopant conce ntrations and high substrate voltages can all improve the high energy QE. A greater depletion depth results in a smaller number of registered multi- pixel events and\, as such\, also leads to an improvement in energy resolu tion for non-isolated event spectra. A third method of improving the QE of a CCD at higher X-ray energy is to increase the angle of incidence. An X- ray entering a sensor at a shallow angle travels through a greater region of depleted silicon and is therefore much more likely to interact in the d epletion region. This study outlines the most recent work carried out at t he University of Leicester focused on investigating the effect of changing the incidence angle of X-rays interacting with a CCD. A Monte Carlo model has been developed and used to investigate the effect of tilting a CCD on the quantum efficiency\, energy resolution and multi-pixel event distribu tion as a function of angle. Experimental verification of the model is als o presented.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=89& sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=89&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Position Sensitive Electron Detection for TEM with column parallel CCD DTSTART;VALUE=DATE-TIME:20080902T161000Z DTEND;VALUE=DATE-TIME:20080902T163000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-111@cern.ch DESCRIPTION:Speakers: Dr. MOLDOVAN\, Grigore ()\nA number of electron dete ctors for transmission electron microscopes (TEM) are being developed to o vercome limitations of existing imaging cameras\, i.e. poor modulation tra nsfer\, low efficiency\, slow frame rate and limited dynamic range. A vari ety of new detection modes is being considered with these new detectors\, but which will provide optimum performance? This work presents beam tests performed with a fast column parallel CCD detector developed by the Linear Collider Flavour Identification for particle detection at the ILC and use s custom data analysis to reproduce and compare three modes of operation: integrating imaging camera\, binary active pixel sensor and position sensi tive electron detection. These tests demonstrate that best performance is obtained with position sensitive detection\, where filtering can be employ ed to remove clusters of large lateral displacement.\n\nhttp://indico.cern .ch/contributionDisplay.py?contribId=111&sessionId=52&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=111&sessionId=5 2&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Image Charge Multi-Role and Function Detectors DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-110@cern.ch DESCRIPTION:Speakers: Dr. MILNES\, James ()\nThe Image-Charge technique us ed with image tubes provides several operational and practical benefits by serving to isolate the electronic image readout from the detector. The si mple dielectric interface between detector and readout provides vacuum iso lation and no vacuum electrical feed-throughs are required. Since the read out is mechanically separate from the detector\, an image tube of generic design can be simply optimised for various applications by attaching it to different readout devices and electronics. We present imaging performance results using a single image tube with a variety of readout devices suite d to differing applications: a) A four electrode charge division tetra wed ge anode\, optimised for best spatial resolution in photon counting mode. b) A cross delay-line anode\, enabling higher count rate\, and the possibi lity of discriminating near co-incident events\, and an event timing resol ution of better than 1 nanosecond. c) A multi-anode readout connected\, ei ther to multi channel oscilloscope for analogue measurements of fast optic al pulses\, or alternately\, to a multi-channel time correlated single pho ton counting (TCSPC) card.\n\nhttp://indico.cern.ch/contributionDisplay.py ?contribId=110&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=110&sessionId=2 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Reborn quadrant anode image sensor DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-113@cern.ch DESCRIPTION:Speakers: Mr. PROKAZOV\, Yury ()\nWe describe position and tim e sensitive photon counting microchannel plate detector with improved quad rant anode readout system. The technique relies on a combination of the fo ur planar elements pattern and an additional fifth electrode. The charge c loud induced by the event is split between the electrodes. The measured ch arge values uniquely define the position of the initial event. Quadrant an ode has been first published in 1976 by Lampton and Malina. This anode typ e was undeservedly forgotten and its potential has been hardly underestima ted. Presented approach extends the working spatial range to the whole sen sitive area of the microchannel plate surface and demonstrates good linear ity over the field of view. The resulting spatial resolution is better the n 50 microns over the whole field of view in combination with less then 13 0 picoseconds temporal resolution for 25 mm detector diameter at count rat es up to one million events per second.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=113&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=113&sessionId=2 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Profile monitors for pulsed antiproton beams used by the ASACUSA e xperiemnt at Cern's antiproton decelerator DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-112@cern.ch DESCRIPTION:Speakers: Dr. HORI\, Masaki ()\nSeveral types of profile monit ors used to measure the spatial and temporal profiles of pulsed antiproton beams at the Antiproton Decelerator (AD) facility of CERN is described. T hese include a highly sensitive\, secondary electron emission chamber\, a parallel plate ionization chamber\, and a Lucite Cherenkov counter. These monitors were recently used in laser spectroscopy experiments of antiproto nic helium atoms.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribI d=112&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=112&sessionId=4 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Position sensitive detectors of the detector group at Julich DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-82@cern.ch DESCRIPTION:Speakers: Mr. ENGELS\, Ralf ()\nThe detector group of the Cent ral Institute of Electronics at the Forschungszentrum Jülich GmbH was fou nded in 1968. First developments aimed at a detector system with a positio n sensitive BF3 proportional counter for small angle neutron scattering\, which was later used at a beamline of the research reactor FRJ2. At the en d of the 70's first measurements were carried out with photomultiplier (PM T) based detector systems together with a LiI crystal from Harshaw. Based on this experience we started with the spectrum of position sensitive neut ron scintillation detectors\, which have been developed and designed in ou r institute during the last three decades comprising several high resoluti on linear and two dimensional detectors. The general design of those detec tors is based on a modified Anger principle using an array of PMTs and a 1 mm 6Li glass scintillator. The sensitive detector area varies on the type of the PMTs used and is related to the spatial resolution of the detector type. The neutron sensitivity at 1� is about 65% and the rest gamma sens itivity is less than 10-4 with a maximum count rate up to 500kHz depending on the used detector system.\n\nhttp://indico.cern.ch/contributionDisplay .py?contribId=82&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=82&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:FinnCRack a cosmic muon telescope for detector studies DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-83@cern.ch DESCRIPTION:Speakers: MAENPAA\, Teppo (Helsinki Institute of Physics)\nWe present a cosmic rack\, the FinnCRack. This device is a silicon strip dete ctor based telescope that measures tracks of cosmic particles. FinnCRack i s constructed using components of the Tracker Outer Barrel (TOB) of the CM S experiment at the CERN LHC. The FinnCRack provides temperature and humid ity control. The data is analyzed using the official CMS analysis software package\, CMSSW. The setup in FinnCRack has been designed to allow insert ion of detectors to be tested into the middle of the device and integratio n of those detectors to the data acquisition. The setup can be used as a r eference tracker in detector studies. The surface area in which reference is produced is approx. 1000cm2\n\nhttp://indico.cern.ch/contributionDispla y.py?contribId=83&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=83&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Performance of an AGATA prototype detector estimated by Compton-im aging techniques DTSTART;VALUE=DATE-TIME:20080902T103000Z DTEND;VALUE=DATE-TIME:20080902T105000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-80@cern.ch DESCRIPTION:Speakers: Dr. RECCHIA\, Francesco ()\nHigh-resolution γ-ray s pectroscopy is one of the most powerful and sensitive tools to investigate Nuclear Structure. However\, it is apparent that the present generation d evices are not suited to the expected experimental conditions at the plann ed and under construction radioactive ion beam facilities. Devices with hi gher efficiency and sensitivity should be developed. The solution which ha s been proposed since the mid-nineties relies on the possibility to determ ine the position and the energy deposition of the individual interaction p oints of a photon within a germanium crystal\, and on the capability to re construct the photon scattering sequence through powerful data analysis al gorithms. The estimation of the performance obtainable in experimental con ditions was done by two ways: using an in-beam experiment\, extracting the information from the Doppler correction capabilities\, and using Compton imaging technique\, extracting the information from the quality of the pro duced images of the radioactive sources.\n\nhttp://indico.cern.ch/contribu tionDisplay.py?contribId=80&sessionId=50&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=80&sessionId=50 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Characterisation of HEPAPS4 - a family of CMOS active pixel sensor s for charged particle detection DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-81@cern.ch DESCRIPTION:Speakers: Mr. MANEUSKI\, Dzmitry ()\nMonolithic active pixel s ensor technology is a relatively inexpensive and reliable alternative to t hat of CCDs. Potential scientific applications of these devices include ch arged particle detection\, indirect X-ray imaging and indirect neutron det ection. This paper will report on the characterisation of three different sensor variants from the HEPAPS4 family. The sensors have identical 3MOS d esign but differ by the implementation of the photosensitive element. They have an array of 1024 x 384 pixels of 15 x 15 um^2 with 20 um epi-layer. Photonic methods are used to measure conversion gain\, linearity\, signal to noise ration\, dynamic range and pixel-to-pixel uniformity. In the nois e analysis different contributing components such as reset noise\, dark cu rrent and read noise are identified.\n\nhttp://indico.cern.ch/contribution Display.py?contribId=81&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=81&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Sensor R&D for CMS Tracker upgrade DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-119@cern.ch DESCRIPTION:Speakers: Dr. KOYBASI\, Ozhan ()\nFor the luminosity upgrade o f the LHC\, CMS is starting ambitious and diversified sensor research and development projects. The increased particle fluence implies more stringen t requirements on the radiation hardness\; the increased occupancy require s higher granularity\; the need of moderating the material budget while in creasing the number of readout channels suggests the use of thinner detect ors. Different silicon bulk materials and detector concepts are investigat ed. Two 6-inch multi-project wafers with two different companies are in th e planning\, containing dedicated strip\, short strip and pixel structures \; the materials under investigation are floatzone n-type\, floatzone p-ty pe\, Magnetic Czochralski n- and p-type\, with different thicknesses. Othe r projects are studying n- and p-type epitaxial structures\, as well as no n-planar methods like Silicon-On-Insulator and 3D structures. In parallel with the research on the sensors\, different connection concepts are evalu ated\, especially relevant for the short strip detectors.\n\nhttp://indico .cern.ch/contributionDisplay.py?contribId=119&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=119&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The Detective Quantum Efficiency of Electron Area Detectors DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-118@cern.ch DESCRIPTION:Speakers: Dr. FARUQI\, Wasi ()\nRecent progress in detector de sign has created the need for a careful side-by-side comparison of the mod ulation transfer function (MTF) and resolution-dependent detective quantum efficiency (DQE) of existing electron detectors\, including film\, with d etectors based on new technology. We will present the results of measureme nts of the MTF and DQE of several detectors at 120 and 300ke. MTF and DQE measurements for 300 keV electrons will be presented for three detectors\, viz. film\, CCD and MAPS and Medipix2 at 120 keV. Computer simulations ha ve also been carried out\, showing good agreement with the experimental re sults. We will conclude that the DQE to be expected from direct detection by back-thinned CMOS designs is likely to be equal to or better than film at 300 keV.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=118& sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=118&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Design and Operation of a 2d thin film semiconductor neutron detec tor for use as a beamport monitor DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-84@cern.ch DESCRIPTION:Speakers: Mr. UNRUH\, Troy ()\nSilicon based diodes coated wit h a thin film of neutron reactive materials have been shown to produce exc ellent low efficiency neutron detectors. This work employs the same techno logy\, but groups 25 equally sized and spaced diodes on a single 29 mm by 29 mm chip. The 5x5 chips have been fabricated and coated with a thin film of 6LiF for use as a low efficiency neutron beam monitor. The 5x5 neutron detector array is coupled to an array of pre amplifiers allowing the resp onse to be interpreted using a LabVIEW FPGA. The 5x5 array has been charac terized in a diffracted neutron beam. This work is part of on-going resear ch to develop various designs of high and low efficient semiconductor neut ron detectors.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=8 4&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=84&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Delay-Line Readout Method Research DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-85@cern.ch DESCRIPTION:Speakers: Dr. ZHOU\, Yi ()\nDelay-Line readout method is suita ble for GEM detector in low-rate environment. According to the electric ci rcuit model of delay-line and the output signal of GEM detector\, we const ruct a full simulation model of delay-line readout system\, containing del ay-line readout PCB\, Amplifier\, Constant-fraction discriminator and Time -Digital converter. Three kinds of delay-lines\, with the per cell time de lay of 300ps\, 600ps and 800ps in ideal condition\, are selected. The corr esponding test results are 360.8ps/cell\, 458.6ps/cell and 654.7ps/cell in real case. The difference between experiments and design show that the af fection of parasitical parameters of PCB route must be considered. By usin g the software of 2D Extractor (Ansoft Corporation)\, the time delay of th e PCB route is calculated and a new electric circuit model of our delay-li ne PCB is developed. The simulation results of the new model are 353.1ps/c ell\, 454.9ps/cell and 656.8ps/cell\, which are in good agreement with exp eriment. A GEM detector with 150um width readout stripes in 400um pitch\, coupled with the Delay-line readout PCB (360.8ps/cell)\, is tested with an 8keV X-ray source. The position resolution of 240um is obtained.\n\nhttp: //indico.cern.ch/contributionDisplay.py?contribId=85&sessionId=29&confId=1 9099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=85&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Optical and IR Applications in Astronomy and Astrophysics DTSTART;VALUE=DATE-TIME:20080901T125000Z DTEND;VALUE=DATE-TIME:20080901T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-7@cern.ch DESCRIPTION:Speakers: Prof. MCLEAN\, Ian ()\nThe set comprising of silicon charge-coupled devices\, low band-gap infrared\narrays and bolometer arra ys provide astronomers with position-sensitive\nphoton detectors from the X-ray to the sub-mm. In recent years the most\nsignificant advances have o ccurred in the near-infrared part of the spectrum\nbecause not only have t he detector formats caught up with those of CCDs but\nalso because the adv ent of adaptive optics has meant that very largest\ntelescopes can achieve their diffraction limit in the infrared. Thus\ninfrared cameras\, spectro meters and hybrid instruments that measure spatial\nand spectral informati on simultaneously are now commanding the greatest\nattention on telescopes from 6.5-10 meters in effective aperture. Scientific\napplications of the se new infrared instruments span everything from the\nsearch for nearby so lar systems to the orbital motions of stars about the\nmassive black hole at the center of the Milky Way and studies of the first\ngalaxies to form in the high redshift Universe. Background\, principles and\napplications o f infrared array detectors to astronomy and astrophysics will\nbe discusse d with particular emphasis on work at the W. M. Keck 10-m\ntelescope on Ma una Kea\, Hawaii.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribI d=7&sessionId=10&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=7&sessionId=10& confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:CMS Tracker upgrade issues and plans DTSTART;VALUE=DATE-TIME:20080904T090000Z DTEND;VALUE=DATE-TIME:20080904T092000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-109@cern.ch DESCRIPTION:Speakers: DIERLAMM\, Alexander (University of Karlsruhe)\nThe LHC accelerator complex will undergo a program of consolidation and upgrad e of various components\, with goal of exceeding a peak luminosity of 1034 (original design figure) around the year 2013\, to eventually reach value s close to 1035. Such luminosity upgrade poses new challenges to the detec tor operation\, both in terms of instantaneous and integrated rates. In CM S the system that have been identified to need substantial upgrade are the tracker and the level 1 trigger (other aspects are under study). The trac king system needs higher readout granularity and higher radiation toleranc e\, while moderating power dissipation and material budget\, which are alr eady limiting the performance of the present detector. The trigger system needs to include tracking information at the level 1\, to maintain an acce ptable rate without loosing efficiency on physics channels\, which ultimat ely results in further challenges for the design of a new tracker detector and its readout architecture.\nWe give an overview of the options under s tudy to design a tracker that can cope with the enhanced requirements for what concerns choices of silicon sensors\, readout architecture\, powering schemes\, cooling technologies\, detector layouts.\n\nhttp://indico.cern. ch/contributionDisplay.py?contribId=109&sessionId=32&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=109&sessionId=3 2&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Electron multiplication CCDs for astronomical applications DTSTART;VALUE=DATE-TIME:20080901T135000Z DTEND;VALUE=DATE-TIME:20080901T141000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-102@cern.ch DESCRIPTION:Speakers: Dr. DEREK\, Ives ()\nElectron multiplication CCDs ha ve been commercially available for the last few years but have yet to make wide impact in the astronomical community. They have specifically been de signed to use an avalanche gain process during the serial charge transfer to give sub-electron read out noise. In all other respects they are identi cal to the very latest generation of CCDs. They have been used with good s uccess in 'lucky' imaging\, for adaptive optics systems and also in high s peed faint object spectroscopy science programs. The sub electron read noi se makes them an obvious choice for any observation which is normally dete ctor noise limited. We will present a detailed summary of the typical perf ormance and characteristics of these devices and compare and contrast thei r performance against standard low noise astronomical CCDs. We will also p resent modelled and real data for these detectors with particular regard t o some of their lesser know issues such as clock induced charge. Finally w e will present results from real world astronomical testing which shows th e superior performance of these devices.\n\nhttp://indico.cern.ch/contribu tionDisplay.py?contribId=102&sessionId=10&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=102&sessionId=1 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Photon counting microstrip detector for time resolved powder diffr action experiments DTSTART;VALUE=DATE-TIME:20080905T105000Z DTEND;VALUE=DATE-TIME:20080905T111000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-103@cern.ch DESCRIPTION:Speakers: Dr. BERGAMASCHI\, Anna ()\nThe MYTHEN detector is a silicon microstrip detector with single photon counting readout developed powder diffraction experiments at the Swiss Light Source. A one dimensiona l 30k channels system covering 120 degrees has been installed at the Mater ial Science beamline and is being used for users operation since the end o f 2007. Due to its massively parallel detection of X-rays and fast readout \, it is optimized for time-resolved or dose-critical measurements that ca n be performed in fractions of a second on the whole angular range. The in tensity of the synchrotron radiation source can be exploited thanks to the high counting rate capability. Promising results have been obtained also for other synchrotron radiation applications like imaging and pump and pro be experiments. The detector characteristics will be described in detail a nd its outstanding performances will be shown.\n\nhttp://indico.cern.ch/co ntributionDisplay.py?contribId=103&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=103&sessionId=3 8&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Characterization of double-sided 3D Medipix 2 detectors DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-100@cern.ch DESCRIPTION:Speakers: Dr. FLETA\, Celeste (University of Glasgow)\n3D dete ctors are photodiode detectors with n- and p-type electrode columns passin g through a silicon substrate. Using this structure\, the spacing between electrodes can be made much smaller than the substrate thickness\, greatly reducing the collection time and operating voltage of the sensor. The str ucture should also reduce charge sharing between adjacent pixels\, improvi ng the image quality. A variation of the 3D design is the 'double sided' c onfiguration\, where neither set of electrodes passes through the full sub strate thickness. A set of double-sided 3D detectors with full Medipix2 ge ometry have been fabricated\, bump bonded to readout chips\, and connected to the USB interface for Medipix detectors developed by IEAP-CTU (Prague) . The sensors have been tested using different radioactive sources and the results have been compared to those of a standard planar detector.\n\nhtt p://indico.cern.ch/contributionDisplay.py?contribId=100&sessionId=40&confI d=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=100&sessionId=4 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Performance results from the first ZEPLIN-III science run DTSTART;VALUE=DATE-TIME:20080901T162000Z DTEND;VALUE=DATE-TIME:20080901T164000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-101@cern.ch DESCRIPTION:Speakers: ARAUJO\, Henrique ()\nZEPLIN-III is a position-sensi tive liquid xenon time projection chamber which is currently collecting da ta in a deep underground laboratory at Boulby in North Yorkshire\, UK. It 's science goal is the direct detection of Galactic dark matter particles and it is specifically designed to be sensitive to neutralinos predicted b y supersymmetry. We will present results on instrument performance includ ing energy resolution\, position reconstruction and particle species ident ification.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=101&s essionId=11&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=101&sessionId=1 1&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Feasibility study of high sensitive LaBr3 PET scanner based on the DOI-dependent extended-energy window DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-106@cern.ch DESCRIPTION:Speakers: Dr. YOSHIDA\, Eiji (National Institute of Radiologic al Sciences)\nConventionally\, PET scanners are used for the scintillator has high effective atomic number. Recently\, novel scintillators like LaBr 3 have excellent timing and energy resolutions were developed. LaBr3 has h igh performance for the PET scanner\, but effective atomic number is lower than LSO. On the other hand\, we developed the scatter reduction method u sing depth-of-interaction (DOI) information and energy information for hig h sensitivity. Sensitivity of the PET scanner with LaBr3 can be improved u sing this method. In this work\, our method is applied to the whole-body D OI-PET scanner with the LSO/LaBr3 phoswich detector using GATE . From simu lation results\, the number of true coincidences can be increased while ke eping low scatter and low random coincidences by using the DEEW method. NE CR can be improved by 20-60 % for the whole-body DOI-PET scanner. Using th e DEEW method\, sensitivity of the PET scanner with low effective atomic n umber can be improved.\n\nhttp://indico.cern.ch/contributionDisplay.py?con tribId=106&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=106&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Advances in the phtodetection technologies for Cherenkov imaging a pplications DTSTART;VALUE=DATE-TIME:20080903T155000Z DTEND;VALUE=DATE-TIME:20080903T161000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-107@cern.ch DESCRIPTION:Speakers: Dr. NAPPI\, Eugenio (INFN Sezione di Bari)\nThe impr essive development of novel photodetectors for Cherenkov imaging devices h as allowed to achieve the very demanding hadron identification performance required to study CP violation in B meson decays and to assure a successf ul operation in the very harsh environment produced by colliding lead nucl ei head-on at the unprecedented energies of the LHC collider. However\, th e design of the forthcoming generation of Cherenkov imaging detectors will have to adapt to the more exacting conditions at future accelerators enta iling the capability to stand very high event rates and radiation doses. T hese challenges ahead require new ideas in photodection technologies.\n\nh ttp://indico.cern.ch/contributionDisplay.py?contribId=107&sessionId=30&con fId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=107&sessionId=3 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Low-aftergloe CsI:T1 microcolumnar fils for small animal high-spee d microCT DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-104@cern.ch DESCRIPTION:Speakers: Dr. SINGH\, Bipin ()\nDedicated high-speed microCT s ystems are being developed for noninvasive screening of small animals. Suc h systems require scintillators with high spatial resolution\, high light yield\, and minimal persistence to ensure ghost free imaging. Unfortunatel y however\, afterglow associated with the microcolumnar CsI:Tl scintillato r screens used in current high speed systems introduce image lag\, leading to substantial artifacts in reconstructed images\, especially when the de tector is operated at several hundreds of frames per second. At RMD\, we h ave discovered that the addition of a second dopant\, Eu2+\, to the CsI:Tl crystals\, suppress the afterglow by as much as a factor of 20 at 2 ms af ter a short excitation pulse of 20 ns\, and by as much as a factor of 15 a t 2 ms after a long excitation pulse of 100 ms. Our observations\, support ed by theoretical modeling\, indicate that Eu2+ ions introduce deep electr on traps that alter the decay kinetics of the material\, making it suitabl e for many high-speed imaging applications. Here we report on the fabricat ion and characterization of microcolumnar CsI:Tl\,Eu films to examine if t he afterglow properties of CsI:Tl\,Eu crystals are preserved in the films as well. Preliminary results indicate that the co-doped microcolumnar film s show a factor of 3 improvement in the afterglow compared to the standard CsI:Tl films. The effects of the codopant on the performance of the newly fabricated microcolumnar films\, and their suitability for high-speed mic roCT will be discussed in the paper.\n\nhttp://indico.cern.ch/contribution Display.py?contribId=104&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=104&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Status of the CMS Silicon Strip Tracker and commissioning results DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-105@cern.ch DESCRIPTION:Speakers: ANGHEL\, Ioana Maria (University of Illinois at Chic ago)\nWith a total area of more than 200 square meters\, about 15000 silic on modules\, and nearly 10 million readout channels\, the CMS Silicon Stri p Tracker is by far the largest silicon strip detector ever built. Togethe r with the pixel detector\, it measures the momentum of charged particles\ , and plays a major role in lepton identification and heavy quark tagging. The detector has been integrated and commissioned in a dedicated assembly hall on the surface\, prior to the installation in CMS\; up to 15% of the silicon modules have been operated simultaneously\, at different temperat ures\, including the nominal temperature of -10C. Several million cosmic m uon tracks have been recorded using a dedicated trigger system. The achiev ements of this commissioning phase are discussed in detail\, including: de velopment of operation procedures\, data acquisition and detector control software\; evaluation of the intrinsic detector performance\, refinement o f the tracker reconstruction and alignment software. The Tracker has been subsequently installed in the pit\, and will be taking data with CMS at th e time of the conference.\n\nhttp://indico.cern.ch/contributionDisplay.py? contribId=105&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=105&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:New micromegas detectors in the CAST experiment DTSTART;VALUE=DATE-TIME:20080904T131000Z DTEND;VALUE=DATE-TIME:20080904T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-39@cern.ch DESCRIPTION:Speakers: JAVIER\, Galan Lacarra (Instituto de Fisica Nuclear y Altas Energias - Facultad de Cienc)\nA low background Micromegas detecto r was operating at the sunrise side of the CAST (CERN Axion Solar Telescop e) experiment during the first phase of the experiment (2002-2004). This d etector\, constructed of low radioactivity materials\, operated efficientl y and achieved a low background level of around 5x10-5 counts/keV/cm2/s in the 2-4 keV region. This performance was accomplished by exploiting the s patial and energy resolution of the detector as well as the time informati on contained in the pulse shape of the events. During the second phase of the experiment\, the detector at the sunrise was replaced and upgraded by including a shielding. Moreover the old TPC covering the sunset side of th e experiment was replaced by two new Micromegas detectors. These detectors belong to the newest generation of Micromegas detectors: 'bulk' and 'micr obulk'. Performances and advantages will be presented.\n\nhttp://indico.ce rn.ch/contributionDisplay.py?contribId=39&sessionId=34&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=39&sessionId=34 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Silicon Carbide X-ray Detectors for Planetary Exploration DTSTART;VALUE=DATE-TIME:20080903T133000Z DTEND;VALUE=DATE-TIME:20080903T135000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-38@cern.ch DESCRIPTION:Speakers: Dr. LEES\, John ()\nPlanetary exploration places hig h demands on instrumentation and presents some of the harshest operating e nvironments including extreme thermal conditions\, high radiation toleranc e and low mass and power constraints. We present data on a novel detector\ , the Semi-Transparent SiC Schottky Diode (STSSD)\, which shows promising energy resolution (at 5.9 keV it was 1.5 keV Full Width at Half Maximum) a t room temperature and good radiation tolerance for proton irradiation (~1 013 cm-2\, energy ~50 MeV). Future development of SiC detectors will lead to imaging spectroscopic arrays capable of meeting the stringent demands o f future planetary exploration missions. We discuss the detector requireme nts necessary for use in the environment likely to be encountered in a mis sion to the Jovian system.\n\nhttp://indico.cern.ch/contributionDisplay.py ?contribId=38&sessionId=27&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=38&sessionId=27 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Photon detection with CMOS sensors for fast imaging DTSTART;VALUE=DATE-TIME:20080902T155000Z DTEND;VALUE=DATE-TIME:20080902T161000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-33@cern.ch DESCRIPTION:Speakers: BAUDOT\, Jerome (Institut de Recherches Subatomiques (IReS))\nCMOS sensors are developed for high energy physics. They offer a unique optimization with respect to granularity\, thickness\, readout spe ed\, radiation tolerance and power consumption. We focus here on photon im aging.\nAfter a presentation of the general achievements of the MIMOSA sen sors\, we discuss the sensor ability to detect X rays of a few keV. We the n turn to the back-thinned version of CMOS sensors associated with a photo cathode. This new hybrid photo-detector\, called EBCMOS\, provides single visible photon counting and positioning with high resolution at large fram e rates. Results obtained with the first EBCMOS produced in 2007 are shown and its first operations in fluorescence microscopy for biology reported. We conclude on the current developments to reach 1000 frames per second a nd beyond.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=33&se ssionId=52&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=33&sessionId=52 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Performance of a multi-anode photomultiplier employing a ultra bi- alkali photo cathode and ragged dynodes DTSTART;VALUE=DATE-TIME:20080903T131000Z DTEND;VALUE=DATE-TIME:20080903T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-32@cern.ch DESCRIPTION:Speakers: Mr. TOIZUMI\, Takahito ()\nWe report on the performa nce test of a multi-anode photomultiplier (MAPMT) R8900-M16-UBA newly deve loped by Hamamatsu Photonics K.K. A great advantage of R8900 series is a h ighly sensitive surface (> 80 % of physical area)\, but the quantum effici ency (QE) was relatively low (~ 20 %). In this paper\, we have made two su bstantial changes on R8900-M16 : (1) to improve the QE to 40 % level\, by employing a ultra bi-alkali (UBA) photo-cathode\, and (2) to construct a r agged dynode which endure a vibration for future use in space. We measured each pixel signals at single photo-electron level and signals of scintill ation photons using a 16-pixel plastic scintillator array. Thanks to high QE\, good energy resolution of 29.9% (FWHM) was obtained for 59.5keV gamma -rays. Tolerance to the vibration in the possible launching vehicles will be also discussed.\n\nhttp://indico.cern.ch/contributionDisplay.py?contrib Id=32&sessionId=27&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=32&sessionId=27 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Avalanche photodiodes and Vacuum Phototriodes for the Electromagne tic Calorimeter of the CMS experiment at the Large Hadron Collider DTSTART;VALUE=DATE-TIME:20080903T161000Z DTEND;VALUE=DATE-TIME:20080903T163000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-31@cern.ch DESCRIPTION:Speakers: HOBSON\, Peter (Detector Development Group)\nThe Ele ctromagnetic Calorimeter for the Compact Muon Solenoid (CMS) experiment at the CERN Large Hadron Collider (LHC) has lead tungstate crystals as the a ctive medium. The photodetectors used to detect the scintillation light mu st be fast\, sensitive\, radiation-hard\, and operate with significant int ernal gain in a 4T magnetic field for many years. CMS developed two differ ent technologies to satisfy these requirements. In the central subsystem o f the electromagnetic calorimeter 5x5 mm2 silicon avalanche photodiodes (A PD) are used. In the forward/backward regions\, where the radiation levels are highest\, single-gain-stage\, photomultipliers (vacuum phototriodes ( VPT)) are deployed. The design and performance characteristics of the cust om-designed APDs and VPT are described\, the techniques used to ensure rad iation resistance and quality assurance of over one hundred thousand indiv idual photodetectors are discussed\, and the performance of the overall ca lorimeter is presented.\n\nhttp://indico.cern.ch/contributionDisplay.py?co ntribId=31&sessionId=30&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=31&sessionId=30 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Position Sensitive Scintillator Based Detector Improvements by Mea ns of an Integrated Front-End DTSTART;VALUE=DATE-TIME:20080902T113000Z DTEND;VALUE=DATE-TIME:20080902T115000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-30@cern.ch DESCRIPTION:Speakers: Prof. HERRERO-BOSCH\, Vicente ()\nPESIC is an integr ated front-end for multianode photomultiplier based nuclear imaging device s. Its architecture has been designed to improve time behavior and increas e spatial resolution. Its preamplying stage introduces two main benefits: digitally programmable gain adjustment for every photomultiplier output\, and isolation from other front-end electronics by means of current buffers . This last feature allows to use different types of photomultipliers such as SiPM and optimizes front-end deadtime\, reducing impact position depen dent output delay. PESIC includes an indirect measurement of the depth of interaction of the gamma ray inside the scintillator crystal\, based on th e width of its light distribution. Test measurements have been carried out in an experimental dual detector PET setup in order to quantify improveme nts due to front-end integration and detector calibration.\n\nhttp://indic o.cern.ch/contributionDisplay.py?contribId=30&sessionId=18&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=30&sessionId=18 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:An investigation of the position resolution of the HOTWAX detector DTSTART;VALUE=DATE-TIME:20080901T105000Z DTEND;VALUE=DATE-TIME:20080901T111000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-37@cern.ch DESCRIPTION:Speakers: Dr. DUXBURY\, Dominic (RAL\, STFC)\nThe HOTWAXS dete ctor has been available for use by the scientific community at the Daresbu ry SRS for the last 18 months on stations 9.3 and 2.1. A second system has also recently been commissioned on station I22 of the Diamond light sourc e and is in routine use. The detector is based on Microstrip Gas Chamber ( MSGC) technology and offers high counting rate\, parallax free\, photon co unting detection with 512 independently instrumented position sensitive ch annels. The detector was designed to be used in the combined studies of X- ray absorption fine structure and X-ray diffraction (XAFS/XRD)\, and also in the technique of small angle and wide angle X-ray scattering (SAXS/WAXS ). The energy range covered by stations I22 and 9.3 are very similar and v ary from 6 to 30keV. The routine operation of the detectors is generally a bout 8keV using an Ar:DME gas mixture. This report demonstrates that in th e higher energy range very significant gains in both detection efficiency and position (angular) resolution are achieved by moving to a Xenon based gas mixture.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=37& sessionId=9&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=37&sessionId=9& confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A new design of MPGD: Micro-Mesh Micro-Pixel Chamber DTSTART;VALUE=DATE-TIME:20080901T103000Z DTEND;VALUE=DATE-TIME:20080901T105000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-36@cern.ch DESCRIPTION:Speakers: OCHI\, Atsuhiko (Department of Physics)\nA novel MPG D "Micro-Mesh Micro-Pixel Chamber (M^3-PIC) has been developed for particl e imaging and/or TPC readout. The M^3-PIC consists of a Micropixel chamber (u-PIC) and a thin micro mesh film. A point-like electric field is formed around the anode electrode which provides a higher gas gain and more stab le operation than existing MPGDs. In addition\, ion back flow (IBF) into t he detection volume is strongly suppressed. A prototype of this detector ( of size 3cm X 3cm) has been manufactured and successfully operated. Stable operation with a gas gain of more than 5 X 10^4 was achieved using an Ar: Ethane = 50:50 gas mixture\, and the measured IBF rate was less than 1%.\n \nhttp://indico.cern.ch/contributionDisplay.py?contribId=36&sessionId=9&co nfId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=36&sessionId=9& confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Image-transfer properties of a microCT system based on a flat pane l detector DTSTART;VALUE=DATE-TIME:20080902T125000Z DTEND;VALUE=DATE-TIME:20080902T131000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-35@cern.ch DESCRIPTION:Speakers: Dr. MARTINEZ-DAVALOS ()\nA computed microtomography system (microCT) based on a CMOS flat panel detector (FPD) has been recent ly developed at Instituto de Fisica\, UNAM\, and is currently being charac terised. The initial tests include the measurement of X-ray spectra using a CdTe detector\, and the determination of the image transfer characterist ics of the flat panel detector\, such as linearity of response\, MTF\, noi se and DQE. The alignment of the system is carried out with a specially bu ild phantom using the method proposed by Noo et al. for cone beam irradiat ion geometry. Tomographic image reconstruction is performed with in-house developed programs based on the Feldkamp algorithm\, and calibration in Ho unsfield Units (HU) is carried out by means of a tissue-equivalent phantom . Finally\, the dose performance of the system has been evaluated using TL D-100 chips and EBT GafChromic film\, and the results have been compared w ith Monte Carlo simulations. In this work an overview of the main system c haracterisctics is presented\, with an emphasis on the image transfer char acteristics of the flat panel detector.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=35&sessionId=18&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=35&sessionId=18 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Active pixel sensors in nuclear medicine imaging DTSTART;VALUE=DATE-TIME:20080902T133000Z DTEND;VALUE=DATE-TIME:20080902T135000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-34@cern.ch DESCRIPTION:Speakers: Prof. OTT\, Robert (Institute of Cancer Research)\nT hree different Active Pixel Sensors provided through the MI-3 collaboratio n have been tested to assess their application to Nuclear Medicine Imaging . When coupled to a phosphor such as CsI(Tl) these sensors have the potent ial for high resolution imaging of radiotracers such as Tc-99m. The work c arried out so far shows that the noise levels in the APS sensors needs to be as low as possible so that the signal from low energy gamma rays can be detected. Although the present level of noise is relatively high (between 25 electrons and ~100 electrons per pixel) the major component is fixed p attern in nature and can be removed from images. A simple method has been developed to differentiate between fixed pattern noise and statistical noi se and this has been applied to data acquired with the sensors. So far ima ges of simple structures show the potential for this device to become part of a larger system for imaging with sub-mm spatial resolution. Such a dev ice would be useful for imaging small tumours and heart defects using appr opraite radiotracers.\n\nhttp://indico.cern.ch/contributionDisplay.py?cont ribId=34&sessionId=18&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=34&sessionId=18 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:First particle results for the HEPAPS4 characterisation DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-60@cern.ch DESCRIPTION:Speakers: Mr. LAING\, Andrew ()\nMonolithic Active Pixel Senso rs (MAPS) form a set of new detector technologies currently under study as possible vertex and tracking sensors to be used in future high energy phy sics (HEP) experiments. The most active research is being carried out as p art of R&D for future e+e- colliders while such devices are also a possibi lity for vertexing at a neutrino factory near detector. Here presented are preliminary results for particle detection using the HEPAPS4 chip. The HE PAPS4 chip is a large area sensor of standard 3 CMOS type specifically des igned for charged particle detection. This paper will report on the respon se of this device to charged particles from a 6GeV e- testbeam and a beta source. Presented are S/N and cluster size data with preliminary studies o f telescope correlations.\n\nhttp://indico.cern.ch/contributionDisplay.py? contribId=60&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=60&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Detection efficiency spatial and timing resolution of thermal and cold neutron counting MCP detectors DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-61@cern.ch DESCRIPTION:Speakers: Dr. TREMSIN\, Anton ()\nNeutron counting detectors w ith boron or gadolinium doped microchannel plates (MCPs) proved to have ve ry high detection efficiency\, spatial and temporal resolution and have ve ry low readout noise. In this paper we present the results of both theoret ical predictions and experimental evaluations of detection efficiency and spatial resolution measured at cold and thermal neutron beamlines. The qua ntum detection efficiency of not fully optimized detector was measured to be 45% and 14% for the cold and thermal beamlines\, respectively. The expe riments also demonstrate that the spatial resolution can be as high as sub -15 um - highest achievable with the particular MCP pore dimension used in the experiment\, although more electronics development is required in ord er to increase the counting rate capabilities of those 15 um resolution de vices. The timing accuracy of neutron detection is on the scale of few us and is limited by the neutron absorption depth in the detector. The good a greement between the predicted and measured performance allows the optimiz ation of the detector parameters in order to achieve the highest spatial r esolution and detection efficiency in the future devices.\n\nhttp://indico .cern.ch/contributionDisplay.py?contribId=61&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=61&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Application of Pulse Shape analysis to In-Beam EXOGAM data DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-62@cern.ch DESCRIPTION:Speakers: Mr. UNSWORTH\, Carl ()\nThe aim of this work has bee n to investigate the performance of digital pulse shape analysis (PSA) [1] applied to improve the position resolution of EXOGAM [2] high purity Germ anium (HPGe) clover detectors. Unlike arrays currently under development s uch as AGATA [3] and GRETA [4]\, EXOGAM was not designed for the implement ation of PSA and as such is less suitable\; however any improvement in per formance that can be obtained will be of interest to the large number of n uclear physicists who continually use the array to collect experimental da ta. Pulse shape analysis is the process of gaining information about the p osition of an interaction in a detector by analysing the shape of the char ge pulses produced. Two different PSA techniques have been used in this wo rk\, Image Charge Asymmetry (ICA) [5] and Risetime [6] analysis. The intri nsic position resolution of a segment in the detector is 14.5mm\, with PSA the resolution varies from around 10mm in the most sensitive regions to a round 12.5mm in less sensitive regions.\n\n[1] R.M. Lieder et al. Nuc. Phy s. A 682 (2001) 279c-285c. \n[2] Characterisation of an EXOGAM clover germ anium detector\, Sebastien Alexandre Adrien Gros. \n[3] D. Bazzacco\, Nulc . Phys. A 746 (2004) 248c-254c. \n[4] M.A. Deleplanque et al.\, NIM A430 ( 1999) 292-310. \n[5] L.C. Milailescu and B. Cedarwall\, NIM A550 (2005) 27 8-291. \n[6] Th. Kroll et al. NIM A371 (1996) 489-496.\n\nhttp://indico.ce rn.ch/contributionDisplay.py?contribId=62&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=62&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Detectors for X-Ray Coherent Diffractive Imaging DTSTART;VALUE=DATE-TIME:20080903T105000Z DTEND;VALUE=DATE-TIME:20080903T111000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-63@cern.ch DESCRIPTION:Speakers: Dr. HALL\, Christopher ()\nThis paper presents the r esults of a trade study which looks at current and future requirements for detectors in coherent x-ray diffractive imaging. Several technologies are assessed against criteria\, and observations about the challenges to soft x-ray detector science are discussed.\n\nhttp://indico.cern.ch/contributi onDisplay.py?contribId=63&sessionId=25&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=63&sessionId=25 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The prototype of the MICE Electron Muon Ranger: design\, construct ion and test DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-64@cern.ch DESCRIPTION:Speakers: Ms. LIETTI\, Daniela ()\nMICE (Muon Ionization Cooli ng Experiment) and its goal to demonstrate the feasibility of ionization c ooling represent the first step towards a neutrino factory. Muons in MICE are produced by pions which derive from the interaction of protons with a target. Being muons short lived particles\, a special cooling procedure ha s to be developed\, able to reduce quickly the emittance. MICE intends to measure the emittance value with a 0.1% accuracy before and after the cool ing element\; thus a detector able to reconstruct and identify individual particles is required. The presence of electrons due to the muons decay in troduces a systematic error on the emittance and cooling measurements. For this reason a particle identification system is being developed based on a totally active scintillator tracker/calorimeter (EMR\, Electron Muon Ran ger). The detector consists of 50 planes of extruded scintillator bars 1m long and with a section of 1.5x1.9 cm^2\; the bars are readout with 0.8mm WLS fibers coupled to multinanode photomultipliers. The readout segmentati on will be chosen accordingly to the rate (600 of good muons per 1ms spill every 1s). This paper describes the design\, construction and test with c osmic rays of the first small size prototype of the EMR with full analog r eadout\, consisting of 4x and 4y layers with 10 bars each with the final s ection and a length of 19cm.\n\nhttp://indico.cern.ch/contributionDisplay. py?contribId=64&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=64&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Quantifying the limitations of small animal high-purity germanium PET based on Geant4 simulations DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-65@cern.ch DESCRIPTION:Speakers: Mr. OXLEY\, David ()\nThe application of position se nsitive semiconductor detectors in medical imaging is a field of global re search interest. The Monte-Carlo simulation toolkit GEANT4 [1] was employe d to better the understanding of detailed γ-ray interactions within the s mall animal Positron Emission Tomography (PET) imaging system\, SmartPET [ 2]. The two SmartPET detectors [3] are planar\, orthogonally segmented\, h igh-purity germanium strip detectors which are mounted in a rotating gantr y and operated in coincidence to perform positron emission tomography. Thi s system has shown promising results in the field of PET [4] and Compton c amera imaging [5]. Images for a selection of single and multiple point\, l ine and phantom sources were successfully reconstructed using both a filte red back-projection [6] and an iterative reconstruction algorithm [6]. Tec hniques developed based on these data will be presented which allow inclus ion of multiple interaction events into the image reconstruction\, providi ng a strong argument for semiconductor PET. The simulated data were exploi ted as an alternative route to a reconstructed image allowing full quantif ication of the image distortions introduced in each phase of the data reco nstruction. Quantifying the contribution of uncertainty in all system comp onents from detector to reconstruction algorithm allows the areas in need of most attention on the SmartPET project and semiconductor PET to be addr essed. The results shall be discussed in this contribution.\n\n[1] http:// geant4.web.cern.ch/geant4/ \n[2] A.J. Boston et al.\, An overview of the S martPET project: Progress Report\, oral contribution\, Argonne National La boratory\, Chicago\, USA (2006)\, http://ns.ph.liv.ac.uk/~ajb/public/prese ntations/smartpet-overview-anl-may-2006.pdf \n[3] H.C.Boston et al.\, Nucl . Instr. and Meth.A (2007)\, doi:10.1016/j.nima.2007.04.017 \n[4] R.J. Coo per et al. in preparation for submission (2008) \n[5] J.E.Gillam et al. Nu cl. Instr. and Meth. A Vol 579 pp 76-79 (2007) \n[6] A.R. Mather\, PhD The sis\, Evaluation of the Planar Germanium SmartPET system for use in Positr on Emission Tomography\, University of Liverpool (2007)\n\nhttp://indico.c ern.ch/contributionDisplay.py?contribId=65&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=65&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Reduction of multiple triggering in counting detectors DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-66@cern.ch DESCRIPTION:Speakers: Dr. LANGSTAFF\, Dave (University of Wales\, Aberystw yth)\nIn detectors utilising microchannel plates as an amplification stage \, there is a degree of charge cloud spreading within the microchannel pla te stack and also between the microchannel plate stack and the readout dev ice. This charge cloud spreading results multiple triggering within event counting detectors\, leading to degradation of spatial resolution and stat istical noise on the resultant spectrum. We present a scheme for reducing such multiple triggering based on a first-past-the-post voting circuit int erposed between the charge amplifier/discriminators and the counters in an event counting detector.\n\nhttp://indico.cern.ch/contributionDisplay.py? contribId=66&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=66&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The Trigger system of the Alice Muon Spectrometer at LHC DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-67@cern.ch DESCRIPTION:Speakers: DUPIEUX\, Pascal (Laboratoire de Physique Corpuscula ire (LPC))\nThe forward muon spectrometer of the ALICE experiment aims at investigating the properties of strongly interacting matter at the extreme energy density reached in heavy ion collisions at LHC. The trigger system of the spectrometer consists of four planes of RPC (Resistive Plate Chamb er) detectors operated in streamer mode\, 21k front-end channels and fast- decision electronics\, covering an area of 140 m2. It is designed to recon struct (muon) tracks\, in a large background environment\, for providing a fast trigger signal. Indeed\, a trigger decision is delivered each 25 ns (40 MHz) with a total latency of 800 ns. The hit position on the RPC is me asured in two orthogonal dimensions with an accuracy of the order of 1 cm. Selected aspects of the design and of the installation\, which has lasted from 2006 to 2007\, of such a large device will be discussed. The perform ances\, of both detectors and electronics\, measured with dedicated test t ools and cosmic rays during the commissioning runs carried out in the firs t half of year 2008 will be presented.\n\nhttp://indico.cern.ch/contributi onDisplay.py?contribId=67&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=67&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Modelling a Hybrid Pixel Detector for Coherent X-ray Diffractive I maging DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-68@cern.ch DESCRIPTION:Speakers: Mr. CURWOOD\, Evan ()\nThe emerging interest in cohe rent x-ray diffractive imaging (CXDI) is placing particular demands on pos ition sensitive x-ray detectors. The technique typically requires a high e fficiency\, highly pixellated detector with a large dynamic range. CXDI is a good example of where hybrid pixel detectors will be a very competitive technology. The detector development group at the Monash Centre for Synch rotron Science are developing a hybrid pixel detector aimed at medical ima ging. With some adaptation we believe it will be suitable for a CXDI detec tor. A Monte Carlo model of a silicon detector layer over an ASIC has been developed to allow exploration of this possibility. We report on the resu lts of modelling low energy x-ray (0.5 to 5 keV) interactions in the propo sed device.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=68&s essionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=68&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Sensor concepts for future hybrid pixel detectors DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-69@cern.ch DESCRIPTION:Speakers: HUEGGING\, Fabian Georg ()\nHybrid pixel detectors w hich will be operated in experiments after the luminosity upgrade of LHC\, have to survive very high radiation doses up to $10^{16}~$1~MeV n$_{eq}$ per cm$^2$. Therefore\, new sensor concepts exceeding the radiation tolera nce of the currently used DOFZ planar n-in-n silicon sensors are under inv estigation. Among them are 3D active edge silicon detectors\, single cryst al or polycrystalline chemical vapor deposition (CVD) diamonds or n-in-p p lanar processed silicon detectors on MCz or EPI p-type bulk material. Thes e sensor concepts will be presented and their prospects will be discussed using the experience gained with prototype devices which were bump bonded to ATLAS pixel frond-end electronics. Recent results coming from lab measu rements or test beams will be shown.\n\nhttp://indico.cern.ch/contribution Display.py?contribId=69&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=69&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Novel Gas-based Detection Techniques DTSTART;VALUE=DATE-TIME:20080901T095000Z DTEND;VALUE=DATE-TIME:20080901T103000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-6@cern.ch DESCRIPTION:Speakers: Prof. VAN DER GRAAF\, Harry ()\n100 years ago\, in M anchester\, Hans Geiger operated the first gaseous\ndetector\, which was t he basis for 'wire chambers'\, widely applied as\ntrack imaging in particl e physics experiments.\nIn wire chambers gas amplification occurs\, close to the wire surface\,\ndue to he strong (1/R) electric field. This enables the detection of the\nfew single electrons created in the gas by ionisati on radiation.\n\nIn Micro Pattern Gas Detectors\, areas with a strong elec tric avalanche\nfield are created by one or more conductive perforated pla nes (grid).\nThe granularity of such a detector is determined by the hole pitch and\ncan be much better in comparison to wire chambers.\nWith each g rid hole equipped with its own readout channel (preamp\,\nshaper\, discrim inator) in the form of an active pixel array in a CMOS\nchip\, this micro- granularity is pursued: each hole is a stand-alone\ndetector. This matches future demands on occupancy\, position resolution\nand time resolution fo r high radiation trackers at future ILC\, CLIC or\nsLHC colliders.\nChip m anufacturing processes made two innovations possible: the\nintegration of Micro Pattern Gas Detectors with pixels chips (Integrated\nGrid\, InGrid)\ , and the deposit of a high-resistivity protection layer on\ntop of pixel chips. This 'wafer post processing' technology may enable\nnext innovation s such as micro channel plates and secondary emission foils.\nEssentially\ , the application of gas as detection material\, compared to\,\nfor instan ce\, Si\, offers several advantages\, relevant for future\ntracking and im aging detector developments. For this\, the development of\nTimePix-2\, a new general-purpose pixel chip\, is essential.\n\nhttp://indico.cern.ch/co ntributionDisplay.py?contribId=6&sessionId=9&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=6&sessionId=9&c onfId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Optical & Electrical Characterization of a backthinned CMOS Active Pixel Sensor DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-99@cern.ch DESCRIPTION:Speakers: Dr. BLUE\, Andrew (University of Glasgow)\nThis work will report on the first work on the characterisation of a backthinned Va nilla - a 512x512 (25um squared) active pixel sensor. For some time\, it h as been predicted that the removal of the supporting substrate section of the sensor to allow detection via direct backside illumination would resul t in many potential benefits to applications in fields such as particle ph ysics (lower mass) and biomedical science (enhanced UV detection). However \, whilst common practice in CCDs\, such backthinning techniques have been rarely used on Active Pixel Sensors In this work\, on wafer Vanilla senso rs were backthinned (by E2V) to within a few microns into the epi-layer. C haracterisation of the detectors was carried out through the analysis of P hoton Transfer Curves to yield a measurement of full well capacity\, noise levels\, gain constants and linearity. Spectral characterisation of the s ensors was also performed in the Visible and UV regions. A full comparison against non backthinned front illuminated Vanilla sensors is included.\n\ nhttp://indico.cern.ch/contributionDisplay.py?contribId=99&sessionId=24&co nfId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=99&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The role of position sensing in adaptive optics DTSTART;VALUE=DATE-TIME:20080901T133000Z DTEND;VALUE=DATE-TIME:20080901T135000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-98@cern.ch DESCRIPTION:Speakers: Dr. SAUNTER\, Christopher (University of Durham)\nAd aptive Optics systems measure and correct dynamic optical distortions\,\no ften atmospheric turbulence\, to improve overall system performance. Such \nsystems have grown from their astronomical inception in 1953 to cover ma ny\nfields including ophthalmology\, high power lasers\, communication\, o ptical\nstorage and astronomy.\n\nThere are many different systems but com mon to all is the need to measure\noptical distortions. often at high spat ial resolutions and kilohertz\nrates. Various forms of optics such as the Shack-Hartmann sensor are used\nto develop optical turbulence into patter ns of moving light that may be\nsensed and processed to drive the correcti ve mirrors.\n\nInitially vidicon CRT technology was used\, being replaced by many forms of\nposition sensing detectors including QPDs\, APDs\, fibre coupled PMT arrays\nand MCP devices. Modern astronomical systems are con verging on the use of\nCCD sensors often with on-chip electron multiplying gain\, driven by the\nneed for high framerate and spatial resolution at e xtremely low light\nlevels\, while CMOS sensors hold promise for higher li ght level\napplications. In this talk an overview of sensors in modern ad aptive\noptics\, looking at the benefits of moving to image sensors \, and what\nfurther development may occur.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=98&sessionId=10&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=98&sessionId=10 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The use of automatic scale selection to improve the spatial and sp ectral resolution of a scintillator-coupled EMCCD DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-91@cern.ch DESCRIPTION:Speakers: Mr. HALL\, David ()\nThe technology behind the Elect ron-Multiplying Charge Coupled Device (EMCCD) was successfully exploited b y e2v technologies in the late 1990s. Since then\, many uses have been fo und for these low light level (L3) devices including surveillance and many scientific applications. The EMCCD increases or "multiplies" the charge signal by the phenomenon of impact ionisation (or avalanche multiplication ) allowing the detection of low signal events of only a few photons. When coupled with a scintillator\, this low light capability can be used to im age photon flashes from individual X-ray interaction events. The combinat ion of depth of interaction effects in the scintillator\, shot noise on th e signal and the multiplication noise factor lead to large variations in t he profile of the detected signal from a constant energy X-ray source. Th is variation leads to poor spectral performance and can have adverse effec ts on the centering techniques used in photon-counting imagers. The conce pt of scale-space is similar in many ways to the Fourier or Wavelet Transf orms. Automatic scale selection can be implemented through the scale-spac e transform as a method of fitting a known profile to the observed photon flash. The process is examined here in the context of the photon-counting EMCCD detector and the results obtained in both simulated and experimenta l data compared. Through the analysis of the fitting process and the resu lts achieved\, the implications on imaging performance and spectral resolu tion are discussed.\n\nhttp://indico.cern.ch/contributionDisplay.py?contri bId=91&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=91&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Large Active Rejection Detectors measuring inization and heat simu laneously for the Edelweiss collaboration DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-90@cern.ch DESCRIPTION:Speakers: Mr. NAVICK\, Xavier Francois ()\nFor events produced by betas\, X and gammas rays underneath the surface of ionization and hea t detectors\, the collection of free charge carriers is poor. This is a st rong limiting factor for Dark Matter research as WIMPs. For such events\, electron recoils can indeed mimic nuclear recoils which generated by WIMPs . The solution is to localize of the interaction. This is the reason posit ion sensitive detectors are developed for Edelweiss experiment. \nIn this paper we present the design of the two possible solutions of large active rejection detectors\, and we report the result of the first data taking i n the Frejus Underground Labs (LSM) in the Edelweiss-2 experiment with the se detectors.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=90 &sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=90&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Cellular Automaton Based Position Sensitive Detector Equalization DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-92@cern.ch DESCRIPTION:Speakers: Mr. FERRANDO\, Nestor ()\nIndirect position detector s based on scintillator crystals don't have a spacial uniformity in their response. This happens due to crystal irregularities and gain differences between the photomultiplier anodes. In order to solve this\, PESIC\, an in tegrated front-end for multianode photomultiplier based nuclear imaging de vices was created. One of its main features is the digitally programmable gain adjustment for every photomultiplier output.\nOn another front\, Cell ular Automata have been proved to be a useful method to create models of c ertain dynamic systems. In this paper we introduce a Cellular Automaton wh ich emulates the behavior of the scintillator crystal and the photomultipl ier. Thanks to this model we can make an automatic energy-based calibratio n of the crystal and the photomultiplier by configuring the Cellular Autom aton with experimental results and making it evolve up to an stables tate. This can be useful for make a pre-calibration of the detector before to m ake a calibration of the full system.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=92&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=92&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Maximum likelihood positioning for gamma ray imaging detectors wit h depth of interactions measurement DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-95@cern.ch DESCRIPTION:Speakers: Dr. LERCHE\, Christoph Werner (Universidad Politecni ca de Valencia\, Spain)\nThe center of gravity algorithm leads to strong a rtifacts for gamma-ray imaging detectors that are based on monolithic scin tillation crystals and position sensitive photo-detectors. This is a conse quence of using the centroids as position estimates. The charge division c ircuits which are used to compute the centroids can also be used to comput e the standard deviation of the scintillation light distribution. We studi ed the feasibility of maximum likelihood estimation for computing the true gamma ray photo conversion position from the centroids and the standard d eviation of the light distribution. We used an analytic model for the scin tillation light distribution based on the inverse square law for predictin g the light response function of the scintillation detector and used this model together with maximum likelihood estimation to reconstruct the true impact positions from simulated photo-conversion events. Preliminary resul ts were obtained with Monte Carlo simulation. These results suggest that t he maximum likelihood positioning is feasible and partially removes the st rong artifacts of the center of gravity algorithm. We also show that the m ethod produces good estimates for the depth of interaction.\n\nhttp://indi co.cern.ch/contributionDisplay.py?contribId=95&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=95&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A 4096-pixel MAPS device with on-chip data sparsification DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-96@cern.ch DESCRIPTION:Speakers: Dr. GABRIELLI\, Alessandro (Dipartimento di Fisica U niversità di Bologna)\nA prototype of a mixed-mode ASIC built up of a fas t readout architecture that interfaces with a matrix of 4096 Monolithic Ac tive Pixel Sensor (MAPS)\, via STM 130nm CMOS technology\, was fabricated. Square groups of 16 pixels form a macro-pixel (MP). Each MP can be latche d via single pixels (50 by 50 micron) and a time-stamp is associated with the frozen condition. The readout architecture is parallel and could overc ome the readout speed limit of big matrixes. As the output port can only a ccept one-hit information at a time\, an internal queuing system has been provided to face local high hit-rates. The ASIC can be connected to an act ual full-custom matrix of MAPS or to a digital matrix emulator composed of standard cells\, for testing facilities. For both operating modes a slow- control phase is required to load the chip configuration via mask bits to select which MPs are to be read and which are not\, for example in case th ey are too noisy or burned up. Previous versions of similar ASICs were des igned and properly tested. The work is aimed at improving the design of MA PS detector with an on-chip fast sparsification system\, for particle trac king\, to match the requirements of future high-energy physics experiments . The readout architecture implemented is data driven extending the flexib ility of the system to be also used in first level triggers on tracks in v ertex detectors. Preliminary simulations and tests prove that the readout system can cope with an average hit rate up to 100 MHz/cm2 if a master clo ck of 80 MHz is used\, while maintaining an overall efficiency over 99%.\n \nhttp://indico.cern.ch/contributionDisplay.py?contribId=96&sessionId=40&c onfId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=96&sessionId=40 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A Biological Position Sensitive Detector DTSTART;VALUE=DATE-TIME:20080902T151000Z DTEND;VALUE=DATE-TIME:20080902T155000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-11@cern.ch DESCRIPTION:Speakers: LITKE\, Alan (Santa Cruz Institute for Particle Phys ics (SCIPP))\nThe back of the eye is lined by an extraordinary biological position\nsensitive detector\, the retina. This living neural network is a ble to\nextract vital information about the external visual world\, and tr ansmit this\ninformation in a timely manner to the brain. In this talk\, a fter a brief\nintroduction to retinal architecture\, I will describe how w e measure the\nfunctional properties of the retina\, show what we have lea rned about its\nfunctional organization\, and discuss studies aimed at gui ding the design of\nretinal prosthetic devices. This project was inspired by the development of\nposition sensitive detectors for high energy physic s experiments.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=1 1&sessionId=52&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=11&sessionId=52 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Applications of position sensitive detectors in Nuclear Medicine a nd Radiology DTSTART;VALUE=DATE-TIME:20080902T105000Z DTEND;VALUE=DATE-TIME:20080902T113000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-10@cern.ch DESCRIPTION:Speakers: Prof. ELLIOTT\, Alex ()\nThe use of imaging techniqu es in medicine continues to expand. Over the last decade\, there has been a 30% increase in the number of investigations\, with CT scans rising by almost three fold. The use of x-ray film has given way to the digital det ector and companies strive for continuous improvement in both resolution a nd sensitivity. The latter is particularly important in terms of reducing the population radiation burden and in making screening programmes viable . Improvements in detector materials must be supplemented by improvements in read out and analysis electronics in order to provide faster framing r ates. In Nuclear Medicine\, the introduction of faster electronics has en abled the clinical implementation of time-of-flight systems\, while real-t ime imaging in radiotherapy is being used to improve tumour/normal tissue dose ratios.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=10& sessionId=18&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=10&sessionId=18 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:X- and gamma-ray detector development for space applications DTSTART;VALUE=DATE-TIME:20080903T111000Z DTEND;VALUE=DATE-TIME:20080903T115000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-13@cern.ch DESCRIPTION:Speakers: Prof. OWENS\, Alan ()\nAs space missions have evolve d\, the scientific programs they carry out are becoming increasingly multi -disciplinarian and multi-waveband. This in turn\, requires a broader rang e of measurements to be performed and therefore more instruments to be flo wn. Whereas\, thirty years ago the average planetary mission carried\, say \, 4 prime instruments\, it may now carry 10 or 12. However\, a commensura te increase in spacecraft mass\, power or funding has not been forthcoming . As a consequence\, instruments are becoming increasingly resource limite d and thus a new approach to payload design and construction is required. Several strategies are being pursued by the Advanced Concepts and Technolo gy Preparation Division of ESA. These include\, the so-called HIPS (Highly Integrated Payload Suite) concept [1]\, miniaturization\, the use of adva nced technologies and smart or targeted materials [2]. HIPS achieves mass savings by sharing resources\, functions and real estate amongst the instr uments and spacecraft. Miniaturization achieves resource optimization thro ugh mass and power reduction\, which for X and gamma-ray detectors is diff icult to realize without a similar reduction in sensitivity. The third and forth strategies are potentially the most rewarding\, especially when app lied to X- and gamma-ray detection systems since present day systems are a lmost exclusively designed around conventional technologies which require ancillary support in terms of cooling systems\, high voltage supplies\, ra diation shielding and complex readout sensors\, etc. These in turn load sp acecraft resources\, increase complexity and reduce reliability. Clearly w hat is needed are sensors that fulfill the detection requirements but do n ot require additional services and this is where advanced technologies and particularly targeted materials come into play. In this paper\, we descri be a range of detector developments at ESA which concentrate on new materi als and techniques in an effort to reduce spacecraft resources without com promising performance. \n\nKeywords: X-ray detectors\, Gamma-ray detectors \, semiconductors\, scintillators\n\n[1] S. Kraft\, M. Collon\, J. Montell a\, E.J. Buis\, M. Beijersbergen\, J. Harris\, C. Erd\, P. Falkner\, R. Sc hulz\, A. Peacock\, On the Concept of the Highly Integrated Payload Suite for use in future planetary Missions: the Example of the BepiColombo Mercu ry Planetary Orbiter”\, Proc. of the Fifth IAA International Conference on Low-Cost Planetary Missions\, ed. R.A. Harris\, ESA SP-542\, (2003) pp 219-226.\n[2] D.H. Lumb\, A. Owens\, M. Bavdaz\, T. Peacock\, “Developme nt of Compound Semiconductor Detectors at ESA”\, Nucl. Instr. and Meth.\ , A568 (2006) pp. 427-432.\n\nhttp://indico.cern.ch/contributionDisplay.py ?contribId=13&sessionId=27&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=13&sessionId=27 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Detectors for Synchrotron Radiation and Spallation Neutron Sources DTSTART;VALUE=DATE-TIME:20080903T080000Z DTEND;VALUE=DATE-TIME:20080903T084000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-12@cern.ch DESCRIPTION:Speakers: Prof. ECCLESTON\, Roger ()\nThe development of new s ynchrotron light and neutron sources and the concomitant\nincrease in expe rimental complexity places challenging demands on detector\ntechnologies. For any given instrument\, combinations of one or more of\; high count rat e\,\nhigh spatial resolution\, high temporal resolution and wide bandwidth are required. A\nsurvey of some of the technologies currently being devel oped and deployed to address\nthese challenges will be presented.\n\nhttp: //indico.cern.ch/contributionDisplay.py?contribId=12&sessionId=25&confId=1 9099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=12&sessionId=25 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Applications in Particle Physics DTSTART;VALUE=DATE-TIME:20080904T080000Z DTEND;VALUE=DATE-TIME:20080904T084000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-15@cern.ch DESCRIPTION:Speakers: BOWCOCK\, Themis (University of Liverpool)\nWe summa rize the state of position sensitive detectors for particle physics. Parti cular attention is given to the technologies for the next generation of de tector replacements and upgrades for the LHC. The latest developments in r adiation hard devices are reported together with recent results on novel d evices. A brief review of possible applications of these new technologies to future experiments\, and their potential impact\, is given.\n\nhttp://i ndico.cern.ch/contributionDisplay.py?contribId=15&sessionId=32&confId=1909 9 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=15&sessionId=32 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Novel Photon Detection Systems DTSTART;VALUE=DATE-TIME:20080903T151000Z DTEND;VALUE=DATE-TIME:20080903T155000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-14@cern.ch DESCRIPTION:Speakers: Prof. DANILOV\, Mikhail ()\nRecent developments in p hoto-detectors and photo-detector systems are reviewed. The main emphasis is made on SiPMs - novel very attractive photo-detectors. Their main featu res are described. Properties of detectors manufactured by different produ cers are compared. Different applications are discussed including calorime tery\, muon detection\, tracking\, Cherenkov light detection\, and time of flight measurements. A comparison with other photo-detectors is made.\n\n http://indico.cern.ch/contributionDisplay.py?contribId=14&sessionId=30&con fId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=14&sessionId=30 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Advances in Position Sensitive Detectors for PET applications DTSTART;VALUE=DATE-TIME:20080904T151000Z DTEND;VALUE=DATE-TIME:20080904T155000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-17@cern.ch DESCRIPTION:Speakers: DEL GUERRA\, Alberto ()\nIn 1985 the introduction of the block detector by Mike Casey and Ronald Nutt\, changed the world of n uclear imaging. This invention has made possible high-resolution PET tomog raphs at a much-reduced cost. Almost all dedicated tomographs built since 1985 have used some forms of the block detector. In the last twenty years most of the additional improvement in PET technique was due to the introdu ction of new scintillating materials such as LSO and by the development of more powerful electronics and computing technologies. In the same years\, Hamamatsu introduced the first large area position sensitive photomultipl ier. The application of such technology opened new possibilities for the c onstruction of dedicated high resolution PET apparatus in new emerging fie lds such as molecular medicine\, gene therapy\, breast cancer imaging and combined modalities. \n Since then\, a wide range of new position sensitiv e photodetectors has been developed and used for PET applications: multi a node PMT’s\, Avalanche Photodiodes\, Hybrid Photodiodes and\, recently\, Silicon Photomultipliers. Now some of these technologies are ready for th e big step in the field of clinical PET replacing the original block detec tors. \n A brief historical review of the development of PET detectors and the recent advances are reported here. This paper also presents an overvi ew of the near-future perspectives for PET and PET-MRI scanners with a spe cial attention to the development of SiPMs and SIPM matrices.\n\nhttp://in dico.cern.ch/contributionDisplay.py?contribId=17&sessionId=36&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=17&sessionId=36 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Gas Pixel Detectors and Beyond DTSTART;VALUE=DATE-TIME:20080904T123000Z DTEND;VALUE=DATE-TIME:20080904T131000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-16@cern.ch DESCRIPTION:Speakers: BELLAZZINI\, Ronaldo (INFN Pisa)\nWith the Gas Pixel Detector (GPD)\, the class of micro-pattern gas detectors has reached a c omplete integration between the gas amplification structure and the read-o ut electronics. To obtain this goal\, three generations of application-spe cific integrated circuit of increased complexity and improved functionalit y has been designed and fabricated in deep sub-micron CMOS technology. Thi s implementation has allowed manufacturing a monolithic device\, which rea lizes\, at the same time\, the pixelized charge-collecting electrode and t he amplifying\, shaping and charge measuring front-end electronics of a GP D. A big step forward in terms of size and performances has been obtained in the last version of the 0.18 micron CMOS analog chip\, where over a lar ge active area of 15x15mm2 a very high channel density (470 pixels/mm2) ha s been reached. On the top metal layer of the chip\, 105\,600 hexagonal pi xels at 50 micron pitch have been patterned. The chip has customable self- trigger capability and includes a signal pre-processing function for the a utomatic localization of the event coordinates. In this way\, by limiting the output signal to only those pixels belonging to the region of interest \, it is possible to reduce significantly the read-out time and data volum e. In-depth tests performed on a GPD built up by coupling this device to a fine pitch (50 micron) gas electron multiplier or microchannel plates are reported. Matching of the gas amplification and read-out pitch has let to obtain optimal results. A possible use of this detector for X-ray polarim etry of astronomical sources and other imaging applications are discussed .\nResults from test of a fourth generation very large area ASIC working i n counting mode will also be presented for the first time.\n\nhttp://indic o.cern.ch/contributionDisplay.py?contribId=16&sessionId=34&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=16&sessionId=34 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Micromegas tracker project for CLAS12 DTSTART;VALUE=DATE-TIME:20080902T084000Z DTEND;VALUE=DATE-TIME:20080902T090000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-19@cern.ch DESCRIPTION:Speakers: BALL\, Jacques (DAPNIA)\nMicromegas detectors on bul k are used in a new design of the central tracker for the future CLAS12 sp ectrometer in Hall B at Jefferson Lab. Performances\, mechanical designs a nd behaviour in magnetic field are shown.\n\nhttp://indico.cern.ch/contrib utionDisplay.py?contribId=19&sessionId=50&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=19&sessionId=50 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Pixel Detectors for Charged Particles DTSTART;VALUE=DATE-TIME:20080905T080000Z DTEND;VALUE=DATE-TIME:20080905T084000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-18@cern.ch DESCRIPTION:Speakers: WERMES\, Norbert (Physikalisches Institut)\nPixel De tectors as the current technology of choice for the innermost\nvertex dete ction have now reached a stage where large detectors have\nbeen built for the LHC experiments and a new era of developments\,\nboth for hybrid and f or monolithic and semi-monolithic pixel\ndetectors is in full swing. This is largely driven by the\nrequirements of the Super-LHC and by collider ex periments which plan\nto use monolithic pixel detectors for the first time such as STAR at\nRHIC and Super-BELLE. The talk will give an overview ove r current\ndevelopments on hybrid pixel detectors as well as on so-called active\npixel detectors for particle tracking and vertexing including MAPS \nand DEPFET pixels.\n\nhttp://indico.cern.ch/contributionDisplay.py?contr ibId=18&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=18&sessionId=38 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Instrumentation for sub-mm astronomy DTSTART;VALUE=DATE-TIME:20080901T141000Z DTEND;VALUE=DATE-TIME:20080901T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-117@cern.ch DESCRIPTION:Speakers: Dr. WOODCRAFT\, Adam ()\nSub-mm astronomy has seen a n explosive growth in recent years. This has been driven by improvements i n detector technology\, and in particular the move from single pixel instr uments to ones containing arrays of hundreds and even thousands of pixels. Sub-mm detectors are different from those used in astronomy at most other wavelengths in that they are not produced commercially. Instead\, researc h\, development and construction is carried out in universities and govern ment laboratories. We are also at an interesting point in that several com peting detector technologies are under development and it is not yet clear which will be used in future instruments. I will discuss current instrume nts as well as the issues facing us in developing the next generation of i nstruments\, operating both on the ground and from space.\n\nhttp://indico .cern.ch/contributionDisplay.py?contribId=117&sessionId=10&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=117&sessionId=1 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Recent results on the performace of irradiated LHCb VELO detector s DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-116@cern.ch DESCRIPTION:Speakers: BOWCOCK\, Themis (Department of Physics)\nNew result s on the performance of n+n and n+p LHCb VELO sensors are presented. Speci al attention is given to the study of systematic biases in reconstructed c luster positions due to irradition\, and their potential impact on LHC phy sics.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=116&sessio nId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=116&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Hybrid charge preamplifters - design methodology & performance lim its DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-151@cern.ch DESCRIPTION:Speakers: Dr. PANJKOVIC\, Goran ()\nThe hybrid charge amplifie rs have been around for some time and it seems they are approaching their technological maturity\, but not the extinction yet. In this paper the des ign methodology is formalized and key design constraints are defined and d iscussed. Further\, considering that components used in such preamplifiers are also reaching their technological maturity\, it is possible to predic t performance limits with high degree of accuracy. Design of pulse shapers is also covered\, mainly focusing on translation of the key performance r equirements into parameters needed for formal design of active electronics filters. Most of the existing literature separately deals with the perfor mance and the design issues\, while our objective is to merge those two pr ocesses in a single practical method. We would also point to some key simi larities and differences between hybrid and ASIC design approaches.\n\nhtt p://indico.cern.ch/contributionDisplay.py?contribId=151&sessionId=24&confI d=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=151&sessionId=2 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Plastic Scintillator-based Radiation Detector for Mobile Radiation Detection System against Nuclear/Radiological Terror DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-150@cern.ch DESCRIPTION:Speakers: KWAK\, Sung-Woo (KINAC)\nIn these days\, the threats relating to nuclear and radioactive materials have become a matter of int ernationally increased grave concern. The mobile radiation detection syste m has employed a NaI-based radiation detector to monitor in-transit nuclea r material. In the design of a radiation detector for prevention of illici t trafficking of nuclear and radioactive materials\, the trade-off should be carefully optimized between performance and cost to achieve cost-effect ive inspection system. The cost-effective mobile radiation detection syste m based on plastic scintillation material is introduced in this paper. Thi s paper also deals with six energy windowing approach to discriminate any targeted materials (SNM\, radioactive source) from nationally occurring ra dioactive material (NORM). For energy windowing approach\, placement of ea ch energy window boundary and its statistical radio are characterized by u sing MCNPX. The theoretical results are corrected with systematic noise ob tained through experiment. Finally\, this paper demonstrates how the mobil e radiation detection system succeeds in detecting the targeted materials and discriminating them from NORM.\n\nhttp://indico.cern.ch/contributionDi splay.py?contribId=150&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=150&sessionId=4 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Progress on the Aberystwyth Electron Counting Array DTSTART;VALUE=DATE-TIME:20080903T103000Z DTEND;VALUE=DATE-TIME:20080903T105000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-153@cern.ch DESCRIPTION:Speakers: Dr. LANGSTAFF\, Dave (University of Wales\, Aberystw yth)\nWe report on progress made on the Aberystwyth University Electron Co unting Detector array since the last PSD conference. A new detector with 1 \,536 pixels across an active area of 38mm x 5mm is presented. Also presen ted are applications of the existing detector in photoelectron spectroscop y\, showing how the improvement in detection technology enables fresh insi ghts into the fabrication of semiconductor device structures. Examples pre sented are metal contact formation in diamond and the growth of organic th in film layers on conventional inorganic semiconductors.\n\nhttp://indico. cern.ch/contributionDisplay.py?contribId=153&sessionId=25&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=153&sessionId=2 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The EUDET High Resolution Pixel Telescope DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-152@cern.ch DESCRIPTION:Speakers: Mr. ROLOFF\, Philipp (Deutsches Elektronen-Synchrotr on (DESY))\nA high resolution (sigma\n\nhttp://indico.cern.ch/contribution Display.py?contribId=152&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=152&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:eLeNA: A Parametric CMOS Active Pixel Sensor for the evaluation of noise reduction architectures DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-155@cern.ch DESCRIPTION:Speakers: Dr. ANAXAGORAS\, Thalis ()\nWe present a parametric CMOS Active Pixel Pixel for the evaluation of noise reduction architecture s. The sensor is called e-Le-NA\, which stands for Low Noise Active pixel sensor. It consists of fourteen different arrays for characterising and in vestigating method to reduce the noise in an image sensor. In a MAPS\, the dominant source of noise is the reset noise. A conventional technique is to apply a Correlated Doubling Sampling (CDS). For MAPS\, other techniques are also envisaged\, based on performing the reset in an actively control led way\, hence their collective name as ‘active reset’. This sensor i ncludes architectures for both CDS and active reset. The goal is to achiev e sub 10 e- rms and we will present preliminary results. The sensor was de signed and manufactured in the novel 0.18 m CMOS Image Sensor process I NMAPS\, which includes a special deep P-well module for enhanced imaging p erformance and was developed by RAL. The sensor has 512 x 448 pixels at 15 um pitch\, the die is 8 mm x 9.1 mm and it was manufactured with two epit axial layer thicknesses\, of 5 and 12 um.\n\nhttp://indico.cern.ch/contrib utionDisplay.py?contribId=155&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=155&sessionId=4 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A word of welcome DTSTART;VALUE=DATE-TIME:20080901T092000Z DTEND;VALUE=DATE-TIME:20080901T093500Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-154@cern.ch DESCRIPTION:Speakers: Prof. RUSSELL KCB\, DL\, FRSE\, Muir (The University of Glasgow)\nhttp://indico.cern.ch/contributionDisplay.py?contribId=154&s essionId=45&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=154&sessionId=4 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Conference Summary DTSTART;VALUE=DATE-TIME:20080905T113000Z DTEND;VALUE=DATE-TIME:20080905T115000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-157@cern.ch DESCRIPTION:Speakers: Prof. ALLPORT\, Phil (U. of Liverpool)\nhttp://indic o.cern.ch/contributionDisplay.py?contribId=157&sessionId=43&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=157&sessionId=4 3&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Special Announcement - First tracks reconstructed from LHC beam in the LHCb VELO. DTSTART;VALUE=DATE-TIME:20080901T093500Z DTEND;VALUE=DATE-TIME:20080901T095000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-156@cern.ch DESCRIPTION:Speakers: PARKES\, Chris (Department of Physics and Astronomy) \nAt 17:30 on Friday 22nd August LHCb reconstructed in its Vertex \nLocato r (VELO) the first particles from interactions of the LHC beam. The \nobse rvation was made during an LHC synchronization test. This test \ncollided the proton beam with an absorber 200m from LHCb. The resulting \nparticl es from the very first event were reconstructed in the LHCb VELO.\n\nhttp: //indico.cern.ch/contributionDisplay.py?contribId=156&sessionId=45&confId= 19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=156&sessionId=4 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Development of linseed oil-free Bakelite Resistive Plate Chambers DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-158@cern.ch DESCRIPTION:Speakers: Prof. SUDEB\, Bhattacharya ()\, BHATTACHARYA\, SUDEB (Saha Institute of Nuclear Physics\, Kolkata\, India)\nIn this paper we w ould like to present a comparative study of the Resistive Plate Chambers ( RPC) made of different grades of Bakelite paper laminates\, produced and c ommercially available in India. The chambers\, operated in the streamer mo de using argon\, tetrafluroethane and isobutene in 34:59:7 mixing ratio\, are tested for the efficiency and stability with cosmic rays. A particular grade of Bakelite (P-120\, NEMA LI-1989 Grade XXX)\, used for high voltag e insulation in humid conditions\, was found to give satisfactory performa nce with stable efficiency of >96% continuously for a long period. In the first set of detectors made with such Bakelite\, a thin coating of silicon e fluid on the inner surfaces of the Bakelite was found to be necessary fo r operation of the detector. However\, very recently RPCs made with the sa me grade of Bakelite but having very fine surface finish\, are found to gi ve equivalent performance even without any coating inside. Results of the surface profile studies of the Bakelite and the timing properties & cross- talk of such detectors will also be presented.\n\nhttp://indico.cern.ch/co ntributionDisplay.py?contribId=158&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=158&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The multidimensional integrated intelligent imaging project (M-I3) DTSTART;VALUE=DATE-TIME:20080903T163000Z DTEND;VALUE=DATE-TIME:20080903T165000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-48@cern.ch DESCRIPTION:Speakers: Dr. EVANS\, Phil ()\nM-I3 is a consortium of eleven universities and research laboratories whose mission is to develop complem entary metal-oxide semiconductor (CMOS) active pixel sensors (APS) and to apply these sensors to a range of imaging challenges. A range of sensors h as been developed: OPIC - designed for in-pixel intelligence\; FPN - desig ned to develop novel techniques for reducing fixed pattern noise\; HDR - d esigned to develop novel techniques for increasing dynamic range\; Vanilla - with digital and analogue modes and regions of interest\, which has als o been backthinned\; LAS - a novel stitched large area sensor\; and eLeNA - which develops a ranges of low noise pixels. Applications being develope d include: autoradiography\, a gamma camera system\, radiotherapy verifica tion\, tissue diffraction imaging\, X-ray phase-contrast imaging DNA seque ncing\, electron microscopy.\n\nhttp://indico.cern.ch/contributionDisplay. py?contribId=48&sessionId=30&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=48&sessionId=30 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:TCT & test beam results of irradiated magnetic Czochralski silicon (MCz-Si) detectors DTSTART;VALUE=DATE-TIME:20080904T101000Z DTEND;VALUE=DATE-TIME:20080904T103000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-49@cern.ch DESCRIPTION:Speakers: Dr. LUUKKA\, Panja-Riina (Helsinki Institute of Phys ics HIP)\nPad and strip detectors processed on high resistivity n-type mag netic Czochralski silicon were irradiated to several different fluences wi th protons. The pad detectors were characterized with Transient Current Te chnique (TCT) and the full-size strip detectors with a reference beam tele scope and 225 GeV muon beam. The TCT measurements indicate a double juncti on structure and space charge sign inversion in MCz-Si detectors after 5x1 0^14 neq/cm^2 fluence. In the beam test a S/N of 41 was measured for a non -irradiated MCz-Si sensor\, S/N of 25 for a sensor irradiated with 1x10^14 1 MeV neq/cm^2\, and a S/N of 19 for a sensor irradiated with 5x10^14 1 M eV neq/cm^2.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=49& sessionId=32&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=49&sessionId=32 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Characterisation of a pixellated CsI detector for gamma-ray imagin g DTSTART;VALUE=DATE-TIME:20080902T090000Z DTEND;VALUE=DATE-TIME:20080902T092000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-46@cern.ch DESCRIPTION:Speakers: Mr. JONES\, Martin ()\nThe Distinguish collaboration is developing a technique capable of detecting and imaging hidden illicit substances such as explosives or narcotics in luggage and vehicles in tra nsit [1]. To this end there is a requirement for a detection technique tha t is highly sensitive and highly specific. Pulsed Fast Neutron Analysis (P FNA) techniques [2] are used to stimulate the emission of characteristic g amma-rays\, leading to the determination of the concentrations of the ligh t elements (Oxygen – Eg = 6.13MeV\, Carbon – Eg = 4.43MeV) that are no rmally used as primary components of explosive materials. This work is bas ed on the Compton Camera principle [3] which aims to produce a 3D image of sources located in space. Compton Camera measurements are to be undertake n using a planar High purity Germanium (Ge) detector for scattering and an 8 x 8 pixel Caesium Iodide (CsI) detector as an absorber that is coupled to a Hamamatsu H8500 multianode. The CsI has been scanned to measure and c haracterise its performance. Detector characterisation allows quantificati on of the position dependant response of such a device. Principles of the experiment\, testing procedures and some initial Ge/CsI Compton Camera ima ges will be presented.\n\n[1] M. Farahmand et al. "Detection of explosive substances by tomographic inspection using neutron and gamma-ray spectrosc opy"\, NIMB 261 (2007) 396-400\n\n[2] Gozani\, T.\, "Novel applications of fast neutron interrogation methods"\, Nucl. Instr. and Meth. A. 353 (1994 ) 635\n\n[3] D. B. Everett\, J. S. Fleming\, R. W. Todd\, and J. M. Nighti ngale\, "Gamma-radiation imaging system based on the Compton effect"\, Pro c. ZEE\, Vol. 124\, pp. 995-1000\, 1977.\n\nhttp://indico.cern.ch/contribu tionDisplay.py?contribId=46&sessionId=50&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=46&sessionId=50 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Hybrid Photon Detectors for the LHCb RICH: performance and operati onal experience DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-86@cern.ch DESCRIPTION:Speakers: CARSON\, Laurence ()\nPion/kaon discrimination in th e LHCb experiment will be provided by two Ring Imaging Cherenkov (RICH) co unters. These use arrays of 484 Hybrid Photon Detectors (HPDs) to detect t he Cherenkov photons emitted by charged particles traversing the RICH. The HPD consists of a vacuum tube with a multi-alkali S20 photocathode deposi ted on the inside surface of a quartz entrance window\, with the photoelec trons accelerated by a 20 kV voltage onto an anode consisting of an 8192 c hannel pixel silicon sensor. This paper will describe the results from com prehensive quality assurance tests on the 550 HPDs manufactured for LHCb. Furthermore\, two extended measurements carried out on a sample of tubes w ill be described. One measurement determines the efficiency of the HPD pix el chip by measuring the summed analogue response from the backplane of th e silicon sensor\, and the other determines the quantum efficiency of the photocathode. Finally the operational experience gained during the install ation and commissioning of the HPDs in the RICHs\, and the current status there of the HPDs\, will be detailed.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=86&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=86&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Development of large-area reverse-type APD arrays for high-resolut ion medical imaging DTSTART;VALUE=DATE-TIME:20080904T155000Z DTEND;VALUE=DATE-TIME:20080904T161000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-44@cern.ch DESCRIPTION:Speakers: Dr. KATAOKA\, Jun ()\nAvalanche photodiode (APD) off ers an advantage in weak scintillation detection\, fast time response\, as well as magnetic field insensitivity. We have developed large-area APD ar rays with Hamamatsu phonics K.K\, specifically designed for high resolutio n positron emission tomography (PET). Each device has a monolithic 16x16 ( or 8x8) pixels structures with an active area of 1.0 (or 4.0) mm^2 for eac h pixel. We confirm excellent gain uniformity (\n\nhttp://indico.cern.ch/c ontributionDisplay.py?contribId=44&sessionId=36&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=44&sessionId=36 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Development of a low-noise analog front-end ASIC for APD-PET detec tors DTSTART;VALUE=DATE-TIME:20080904T161000Z DTEND;VALUE=DATE-TIME:20080904T163000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-45@cern.ch DESCRIPTION:Speakers: Mr. KOIZUMI\, Makoto ()\nWe report on the developmen t of the front-end ASIC for high spatial resolution PET detectors with tim e-of-flight capability based on LYSO scintillator arrays coupled with posi tion-sensitive avalanche photodiode (APD) arrays. The ASIC is designed on the basis of the Open-IP LSI project led by JAXA and realized in TSMC 0.35 um CMOS technology. It is composed 8 channels of charge sensitive amplifie r\, band-pass filters\, differentiators\, energy and timing discriminators \, and 2 channels of time-to-amplitude comverters. As a result\, the energ y resolution is 9.7% (FWHM) at 511 keV\, and a time resolution is below 97 0 ps. We will also report on the current status of developing 2nd version ASIC which is designed to have 32 channels analog circuits with improved t ime resolution.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId= 45&sessionId=36&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=45&sessionId=36 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Boron imaging with a microstrip silicon detector for application i n BNCT DTSTART;VALUE=DATE-TIME:20080902T131000Z DTEND;VALUE=DATE-TIME:20080902T133000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-42@cern.ch DESCRIPTION:Speakers: Mr. MATTERA\, Andrea ()\nBoron Neutron Capture Thera py (BNCT) is a radiotherapic technique exploiting the alpha particles prod uced after the irradiation of the isotope 10 of boron with thermal neutron s in the capture reaction ^{10}B(n\,alpha)^{7}Li. It is used to treat tumo urs that for their features (radioresistance\, extension\, localization ne ar vital organs) cannot be treated through conventional photon-beams radio therapy.One of the main limitations of this technique is the lack of speci ficity (i.e. the ability of localizing in tumour cells\, saving the health y tissues) of the compounds used to carry the isotope ^{10}B in the organs to be treated.\n\n This work\, developed in the framework of the INFN Pho NeS project\, describes the possibility of boron imaging performed exploit ing the neutrons photoproduced by a Linac (the Clinac 2100C/D of the S.~An na Hospital Radiotherapy Unit in Como\, Italy) and detecting the alphas wi th a non-depleted microstrip silicon detector: the result is a 1D scan of boron concentration. Several boron doped samples have been analyzed\, from solutions of H_3BO_3 (reaching a minimum detectable amount of 25ng of ^{1 0}B to biological samp les of urine containing BPA and BSH (the two molecu les currently used for the clinical trials in BNCT) and ^{10}BPA-Fructose complex perfused human lung samples. Further measurements are under way to calibrate the system\, in order to obtain an absolute value of boron conc entration.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=42&se ssionId=18&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=42&sessionId=18 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Synchrotron x-ray applications of pixel/strip detectors at Diamond DTSTART;VALUE=DATE-TIME:20080903T084000Z DTEND;VALUE=DATE-TIME:20080903T090000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-43@cern.ch DESCRIPTION:Speakers: Dr. MARCHAL\, Julien ()\nA wide range of area and li near detectors have been commissioned on the synchrotron X-ray beamlines o perating at the Diamond Light Source in UK. In addition to mature technolo gies such as Image-Plates\, CCD/scintillator detectors\, Multi-Wire and Mi cro-Strip Gas detectors\, more recent detectors based on semiconductor pix el/strip sensors coupled to CMOS read-out chips are also in use for routin e synchrotron X-ray diffraction and scattering experiments. The performanc e of several commercial and developmental pixel/strip detectors for synchr otron studies are discussed with emphasis on the image quality achieved wi th these devices. Examples of pixel/strip detector applications on Diamond Light Source X-ray beamlines as well as considerations on detector calibr ation and image correction are reported.\n\nhttp://indico.cern.ch/contribu tionDisplay.py?contribId=43&sessionId=25&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=43&sessionId=25 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Generation of Deep N-well CMOS MAPS with In-Pixel Sparsification f or the ILC Vertex Detector DTSTART;VALUE=DATE-TIME:20080905T092000Z DTEND;VALUE=DATE-TIME:20080905T094000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-40@cern.ch DESCRIPTION:Speakers: Dr. TRAVERSI\, Gianluca (University of Bergamo)\nThi s work aims at discussing the design criteria and the characterization res ults relevant to a novel kind of monolithic active pixel sensors (MAPS) in deep submicron CMOS technology (130nm minimum feature size) for vertexing applications at the ILC. Compared to other CMOS MAPS\, such devices imple ment pixel-level data sparsification and time stamping\, with similar func tionalities as in hybrid pixel sensors. The deep n-well (DNW) available in this CMOS generation is used to collect the charge released in the substr ate\, and pixel signal processing is performed by a classical optimum ampl ifying stage for capacitive detectors. This approach has been validated by the first prototype chip (SDR0) containing different test structures of 2 5x25um2 pixels where both analog and digital functions have been integrate d inside the elementary cell. A laser source has been used for the experim ental characterization of the device properties in terms of charge diffusi on among pixels. In the final paper\, the experimental characterization of the prototype chip\, including the calibration with soft X-rays (55Fe) an d the response to beta-rays (90Sr)\, will be presented.\n\nhttp://indico.c ern.ch/contributionDisplay.py?contribId=40&sessionId=38&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=40&sessionId=38 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:First results of the PixelGEM central tracking system of COMPASS DTSTART;VALUE=DATE-TIME:20080904T133000Z DTEND;VALUE=DATE-TIME:20080904T135000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-87@cern.ch DESCRIPTION:Speakers: HAAS\, Florian (Technische Universitat Munchen)\nFor its physics program with a high-intensity hadron beam of 2 x 10^7 particl es per second\, the COMPASS experiment at CERN requires tracking of charge d particles scattered by very small angles with respect to the incident be am direction. While good resolution in time and space is mandatory\, the c hallenge is imposed by the high beam intensity\, requiring radiation-hard detectors which add very little material to the beam path in order to mini mize secondary interactions. To this end\, a set of five triple-GEM detect ors with 1 x 1 mm2 pixels in the beam region and 2-D strips with a pitch o f 400 micrometer in the periphery is currently being installed in the COMP ASS spectrometer. First results of the performance of the full PixelGEM ce ntral tracking system in the COMPASS 2008 hadron beam run will be presente d.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=87&sessionId= 34&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=87&sessionId=34 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:What the Advanced Gamma Tracking Array can do for us: Nuclear scie nce in the 21st century DTSTART;VALUE=DATE-TIME:20080902T080000Z DTEND;VALUE=DATE-TIME:20080902T084000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-9@cern.ch DESCRIPTION:Speakers: Dr. BOSTON\, Andrew ()\nHigh-resolution gamma-ray de tectors based on high-purity germanium crystals (HPGe) are one of the key workhorses of experimental nuclear science. The technical development of s uch detector technology has been dramatic in recent years. Large volume\, high-granularity\, electrically segmented HPGe detectors have been realise d and a methodology to improve position sensitivity using pulse-shape anal ysis coupled with the novel technique of gamma-ray tracking has been devel oped. \nEach major technical advance in gamma-ray detection devices has re sulted in significant new insights into the structure of atomic nuclei. Th e next major step in gamma-ray spectroscopy involves achieving the goal of a 4pi ball of Germanium detectors by using the technique of gamma-ray ene rgy tracking in electrically segmented Germanium crystals. The resulting s pectrometer will have an unparalleled level of detection power for nuclear electromagnetic radiation [1]. Collaborations have been established in E urope (AGATA) [2] and the USA (GRETA/GRETINA) to build gamma-ray tracking spectrometers [3]. \nThis presentation will discuss the status of the AGA TA (Advanced GAmma Tracking Array) spectrometer and will provide an insigh t into how the device will be exploited at European facilities such as INF N Legnaro\, GANIL and the future FAIR facility in Darmstadt\, Germany.\n\n [1] J. Simpson\, J. Phys. G 31 (2005) S1801-S1806. \n[2] J. Simpson\, Acta Phys. Pol. B36 1383 (2005) \n[3] M.A. Delaplanque\, NIM A 430 (1999) 292\ n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=9&sessionId=50&c onfId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=9&sessionId=50& confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Scintillation characteristics and imaging performance of CsI:Tl th in films for X-ray imaging applications DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-146@cern.ch DESCRIPTION:Speakers: Dr. KYUNG CHA\, Bo ()\nWe have manufactured thallium doped cesium iodide (CsI:Tl) scintillator thin films by the thermal depos ition method. The scintillation characteristics of the CsI:Tl thin films w as studied by the X-ray induced luminescence and photoluminescence(PL) for different Tl doping concentrations between 0.1~10.0mol%. The wavelength o f the main emission peak was about 550nm for both studies\, but the light intensity droped and the emission peak shifted toward the long wavelength for higher Tl concentration in X-ray luminescence case. X-ray diffraction (XRD) and scanning electron microscopy (SEM) for observation of structural properties was used to investigate the relationship between the microstru cture affected by the evaporation condition and post-heat treatment\, and the scintillation properties of samples. The imaging performance of the va rious CsI:Tl films fabricated will be also evaluated by X-ray radiographic test after coupling to a CCD sensor.\n\nhttp://indico.cern.ch/contributio nDisplay.py?contribId=146&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=146&sessionId=2 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Design and Fabrication of PDE enhanced SiPM with Micro-lens DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-147@cern.ch DESCRIPTION:Speakers: LEE\, Chae hun (KAIST)\nAn SiPM is a good candidate for PET-MRI systems to overcome problems of conventional PMTs. In this pap er\, a virtual guard ring and wafer trench in SiPM active areas were adopt ed to prevent the premature breakdown in the curvature junction. N+/p-/p/ π/p+ doping structure was simulated and designed to improve avalanche tri gger probability. In order to improve the fill factor in small sized micro -cells in an SiPM pixel\, layout was designed with high sheet resistance p oly-silicon quenching resistor\, and a micro-lens\, to maximize light coll ection efficiency\, was accurately modeled. SiPM fabrication is now in pro gress. PDE\, the dark count\, the timing resolution\, and the gamma-ray en ergy resolution with a scintillation crystal will be measured. Other exper iments in order to compare the performance of different structured SiPMs w ill be done.\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=147 &sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=147&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The X-ray quantum efficiency measurement of a high resistivity CCD DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-145@cern.ch DESCRIPTION:Speakers: Mr. MURRAY\, Neil ()\nThe CCD247 is the 2nd generati on of high resistivity device to be manufactured in e2v technologies plc d evelopment programme. Intended for infrared astronomy\, the latest devices are fabricated on high resistivity (~8 kΩcm) bulk silicon\, allowing for a greater device thickness whilst maintaining full depletion when ‘thin ned’ to a thickness of 150 μm. In the case of the front illuminated var iant\, depletion of up to 300 μm is achievable by applying a gate to subs trate potential of up to 120 V\, whilst retaining adequate spectral perfor mance. The increased depletion of high resistivity CCDs greatly improves t he quantum efficiency (QE) for incident X-ray photons of energies above 4 keV\, making such a device beneficial in future X-ray astronomy missions a nd other applications. The X-ray QE of a CCD is the percentage of incident photons that are converted into electron-hole pairs and sampled by the de vice. This is practically measured for a range of incident photon energies to determine the X-ray sensitivity of the CCD by comparing the flux measu red by the CCD at specific energies to that of a calibrated reference dete ctor illuminated by the same source. The relative difference between the f lux measured by the CCD and the calibrated detector is used to ascertain t he absolute X-ray CCD QE. Here we describe the experimental setup and pres ent results of X-ray QE measurements taken in the energy range 2 keV to 20 keV for a front illuminated CCD247.\n\nhttp://indico.cern.ch/contribution Display.py?contribId=145&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=145&sessionId=2 4&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:The RICH system of the LHCb experiment: status and performance DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-142@cern.ch DESCRIPTION:Speakers: PICKFORD\, Andrew (University of Glasgow)\nThe LHCb experiment is an experiment that will search for new physics in CP violati on from heavy flavour decays at the LHC at CERN. Particle identification ( pion\, kaon and proton discrimination)\, a crucial requirement of the phys ics goals of the experiment\, will be provided by two Ring Imaging CHerenk ov (RICH) detectors. The upstream RICH1 detector incorporates two radiator s\, aerogel and C4F10 gas\, while the downstream RICH2 contains CF4 gas. C ombined\, they provide particle identification coverage over a momentum ra nge between 1 and 100 GeV/c. RICH1 contains a system of novel low-mass car bon-fibre spherical mirrors and flat glass mirrors to focus the Cherenkov light onto arrays of 196 Hybrid Photon Detectors (HPDs). The RICH2 detecto r contains glass spherical and flat mirrors to focus the Cherenkov light o nto arrays of 288 HPDs. Magnetic calibration systems in both RICHes measur e and correct for the distortion of the ring-images in the HPDs from the r esidual magnetic field\, up to 2.5mT\, from the LHCb dipole magnet.\n\nThi s paper will describe the features of the two RICH detectors that are curr ently installed in LHCb\, as well as the novel technologies. The status of the commissioning of the detectors will be given\, the calibration and al ignment techniques and the results from a beam test carried out with the f inal detector components and readout system. Finally\, the anticipated par ticle identification performance of the RICH detectors from comprehensive Monte Carlo simulations will be presented. A technique to calibrate the pa rticle identification performance of the RICH system with data using D* de cays will also be described.\n\nhttp://indico.cern.ch/contributionDisplay. py?contribId=142&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=142&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Precise measurement of the very rare decay $K^+ \\to \\pi^+ \\nu \ \bar{\\nu}$ DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-143@cern.ch DESCRIPTION:Speakers: MOVCHAN\, Sergei (Joint Institute for Nuclear Resear ch (JINR))\nThe P326 proposal of a new experiment NA62 aiming to perform p recise measurement of the very rare kaon decay $K^+ \\to \\pi^+ \\nu \\bar {\\nu}$ branching ratio at CERN is described. About 80 $K^+ \\to \\pi^+ \\ nu \\bar{\\nu}$ events with 10% of background is planned to obtain in two years of data taking. To reconstruct charged pion tracks with high efficie ncy and high resolution a single magnet spectrometer based on straw tubes and working in vacuum should be design and produce. The current status of R&D of this detector and results of its prototype testing are discussed.\n \nhttp://indico.cern.ch/contributionDisplay.py?contribId=143&sessionId=29& confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=143&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Time-Resolved Neutron Imaging System Using a High-Frame-Rate CMOS Camera for TOF Neutron Radiography DTSTART;VALUE=DATE-TIME:20080905T094000Z DTEND;VALUE=DATE-TIME:20080905T100000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-140@cern.ch DESCRIPTION:Speakers: NAKAMURA\, Tatsuya (Japan Atomic Energy Agency)\nAn effective pixel size of a two-dimensional wavelength shifting fibre (WLSF) neutron image detector was improved from 0.5 mm down to 0.17 mm with impl ementing a fibre optic taper (FOT). The main part of the prototype detecto r consisted with a thin ZnS/6LiF screen\, the FOT\, and the crossed WLSF r ibbons for x and y coordinate. The WLSF image detector had 16 x 16 fibre c hannels and the light signals in each fibre were read out individually. Th e FOT that was made out of fine glass fibres with a taper ratio of 3.1 was implemented in between a scintillator screen and the WLS fibres\, which w orked as an image magnifier. The original detector that equipped with a sc intillator screen without a FOT exhibited a spatial resolution of around 0 .8 mm. The spatial resolution of this detector was dominated with a light disperse in the screen and the side length of a fibre of 0.5 mm. The proto type detector equipped with the FOT measured a narrow neutron beam with a finer pixel size whilst the same WLSF were used for readout. This result i ndicated a possibility to improve the effective pixel size / spatial resol ution with a FOT device. This kind of detector would be quite unique and u seful for energy-selective neuron radiography at a pulsed neutron source b ecause of its neutron counting capability.\n\nhttp://indico.cern.ch/contri butionDisplay.py?contribId=140&sessionId=40&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=140&sessionId=4 0&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Laser and Beta source setup characterization of 3D -DDTC detectors fabricated at FBK-irst DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-141@cern.ch DESCRIPTION:Speakers: ZOBOLI\, Andrea (Universita degli Studi di Trento)\n Double-sided Double-Type Column 3D detectors (3D-DDTC) have been fabricate d at Fondazione Bruno Kessler (former IRST). These sensors have columnar e lectrodes etched perpendicularly to the wafer surface from both sides and not fully penetrating into the substrate\, so that the fabrication process is simpler than for standard 3D detectors. Compared to the previously dev eloped 3D Single-Type-Column detectors\, these new detectors are expected to yield shorter charge collection time and higher radiation hardness\, as also predicted by TCAD simulations. The electrical characteristics of the first prototypes (p-on-n with non optimized column depth ) are promising: very low leakage currents\, in the order of 0.1pA/column\, lateral deplet ion voltage at about 0.5V and full depletion voltage just below 3V. We wil l report on the latest results from the functional characterization of str ip sensors connected to ATLAS SCT ABCD3T chips running at 40MHz. The senso rs are stimulated with infrared LASER pulses having a spot size of few mic rons\, so as to investigate the signal variation as a function of the lase r injection point. Moreover\, also a Sr90 Beta source setup will be used t o perform Charge Collection and Efficiency measurements.\n\nhttp://indico. cern.ch/contributionDisplay.py?contribId=141&sessionId=29&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=141&sessionId=2 9&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Performance evaultion for pinhole collimators of small gamma camer a by MTF and NNPS Analysis\; Monte Carlo simulation st DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-148@cern.ch DESCRIPTION:Speakers: Mr. CHO\, Gyuseong ()\nPresently the gamma camera sy stem is widely used in various medical diagnostic\, industrial and environ mental fields. Hence\, the quantitative and effective evaluation of its im aging performance is essential for design and quality assurance. The NEMA standards for gamma camera evaluation are insufficient to perform sensitiv e evaluation. In this study\, MTF(modulation transfer function)\, NNPS(nor malized noise power spectrum) will be suggested to evaluate gamma camera p erformance with changeable pinhole collimators using Monte Carlo simulatio n. We simulated the system with a cylinder and a disk source\, and seven d ifferent pinhole collimators from 1mm- to 4mm-diameter pinhole with lead. The MTF and NNPS data were obtained from output images and were compared w ith FWHM\, sensitivity and differential uniformity. In the result\, we fou nd that MTF and NNPS are effective and novel standards to evaluate imaging performance of gamma cameras instead of conventional NEMA standards.\n\nh ttp://indico.cern.ch/contributionDisplay.py?contribId=148&sessionId=35&con fId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=148&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:K-edge subtraction using an energy sensitive PSD DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-149@cern.ch DESCRIPTION:Speakers: Dr. HALL\, Christopher ()\nDigital Subtraction Angio graphy is an important technique used to image arterial blood flow using a n introduced contrast agent. A mask image (using no contrast agent) is ini tially acquired which is subtracted from subsequent images after introduct ion of the contrast agent\, resulting in images of the only the agent used . However\, given a detector that measures position and energy rather than the currently used integrating devices it is possible to use the K-edge i n the absorption spectra of the contrast agent to conduct equivalent imagi ng. This study demonstrates this imaging possibility using a simulated dat a model and explores its limits under a number of initial conditions of as sumed spatial and spectral resolution. The effects on the final image of d ifferent methods of image subtraction and pre-processing are also explored . It is found that a K-edge subtraction image retains equivalent propertie s as DSA for angiography contrast imaging.\n\nhttp://indico.cern.ch/contri butionDisplay.py?contribId=149&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=149&sessionId=3 5&confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:HEXITEC ASIC - a Pixellated Readout Chip for CZT Detectors DTSTART;VALUE=DATE-TIME:20080901T143000Z DTEND;VALUE=DATE-TIME:20080901T145000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-77@cern.ch DESCRIPTION:Speakers: JONES\, Lawrence (STFC Rutherford Appleton Laborator y)\nHEXITEC is a collaborative project with the aim of developing a new ra nge of detectors for high energy X-ray imaging. High energy X-ray imaging has major advantages over current lower energy imaging for the life and ph ysical sciences including improved phase contrast images on larger\, highe r density samples and with lower accumulated doses. However\, at these ene rgies conventional silicon based devices cannot be used\, hence the requir ement for a new range of high Z detector materials. Underpinning the HEXIT EC programme are the development of a pixellated Cadmium Zinc Telluride (C ZT) detectors\, and a pixellated readout ASIC which will be bump-bonded to the detector. The HEXITEC ASIC is required to have low noise (20 electron s rms) and tolerate detector leakage currents. A prototype 20x20 pixel ASI C has been developed and is being manufactured. A description will be give n of the design of the ASIC together with initial test results.\n\nhttp:// indico.cern.ch/contributionDisplay.py?contribId=77&sessionId=10&confId=190 99 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=77&sessionId=10 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Optimisation of a Dual Head Semiconductor Compton Camera using Gea nt4 DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-76@cern.ch DESCRIPTION:Speakers: Ms. HARKNESS\, Laura ()\nConventional gamma -camera systems utilise mechanical collimation to provide information on the posit ion of an incident gamma-ray photon. Systems that use electronic collimati on utilising Compton Image reconstruction techniques have the opportunity to offer huge improvements in detection sensitivity. Such systems have bee n previously limited by the relatively poor energy resolution of the detec tor material used in the camera. The University Of Liverpool Department Of Physics have been evaluating position sensitive High Purity germanium (HP Ge) detector systems as part of a Single Photon Emission Computed Tomograp hy (SPECT) gamma Compton Camera system. Data has been acquired from the Sm artPET detectors\, operated in Compton Camera mode. These orthogonally seg mented planar detectors are designed for the energy range of small animal PET imaging [1]. The minimum in the energy range of the current system is 244keV [2] due to the 20mm thickness of the first scatter detector. This t hickness of germanium causes a large proportion of gammas with energy less than 244keV to be completely absorbed in the detector\, rather than scatt er through it. Results are presented on the outcome of a Geant4 [3] simula tion designed to optimise the geometry of a new germanium Compton Camera s ystem for the energy range of medical applications.\n\n[1] R.J. Cooper et al.\, Nuclear Instruments and Methods in Physics Research A 579 (2007) [2] H.C. Boston et al.\, IEEE Nuclear Science Symposium Conference Record (20 06) [3] S. Agostinelli\, Nuclear Instruments and Methods in Physics Resear ch A 506 (2003) 250-303\n\nhttp://indico.cern.ch/contributionDisplay.py?co ntribId=76&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=76&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Simple parallel to serial stream converter for Active Pixel Sensor readout for experiment STAR DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-75@cern.ch DESCRIPTION:Speakers: KUSHPIL\, Vasilii (Academy of Sciences of the Czech Republic (ASCR))\nThis paper will describe a new electronic module for con version of parallel data flow to serial stream in USB2 full handshake mode (named in this paper as converter). The converter is used for investigati on of active pixel sensors in NPI of ASCR and in LBL APS group. Readout DA Q software can be run on Win XP OS and Linux OS using this converter. GUI example for DAQ was prepared in Lab Windows and Lab View. The module was d esigned using virtual periphery concept and it can be easy adapted for man y similar tasks for parallel to serial data stream conversion.\n\nhttp://i ndico.cern.ch/contributionDisplay.py?contribId=75&sessionId=29&confId=1909 9 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=75&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Prelimary Monto carlo study of 18-FDG SPECT Imaging with a LaBr3@C e Gamma Camera DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-74@cern.ch DESCRIPTION:Speakers: Mr. ALZIMAMI\, Khalid ()\nThe utility of 18F-deoxygl ucose (18-FDG) in cardiology\, oncology\, and neurology has generated grea t interest in a more economical ways of imaging 18FDG than conventional PE T scanners. The main thrust of this work is to investigate the potential u se of LaBr3:Ce materials in a low-cost FDG-SPECT system compared to NaI(Tl ) using GATE Monte Carlo simulation.. System performance at 140 keV and 51 1 keV was assessed using energy spectra\, system sensitivity\, intrinsic s patial resolution and count rate performance. The intrinsic spatial resolu tion results demonstrated the superiority of LaBr3:Ce crystals with respec t to NaI(Tl) (e.g. 2.4 mm vs. 3.6 mm at 511 keV) . Comparison of the LaBr3 :Ce and NaI(Tl) crystal-based systems showed 4.5% and 8.9% higher system s ensitivity for the LaBr3:Ce at 140 keV and 511 keV\, respectively. The LaB r3:Ce scintillator significantly improves intrinsic count rate performance due to its fast decay time with respect to the NaI(Tl). In conclusion\, b ecause LaBr3:Ce crystal combines excellent intrinsic count rate performanc e with slightly increased system sensitivity\, it has the potential to be used for FDG-SPECT systems.\n\nhttp://indico.cern.ch/contributionDisplay.p y?contribId=74&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=74&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Analysis of time resolution in a dual head LSO+PSPMT PET system us ing low pass filter interpoilation and DCFD techniques DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-72@cern.ch DESCRIPTION:Speakers: Mr. MONZO\, Jose M ()\nA digital procedure is propos ed in this work to improve time resolution in PET systems based in a low-p ass filter interpolation plus a Digital Constant Fraction Discriminator (D CFD). It is analyzed the best way to implement this algorithm applied to o ur dual head PET system. Our detector uses two continuous LSO crystals eac h with a position sensitive PMT. Detector signals are adapted using a anal og front-end to be processed in a digital acquisition board. A test bench has been developed to simulate the electronics and digital algorithms usin g Matlab. Results show that electronic noise and other undesired effects a ffect severally to the timing resolution. Interpolated DCFD has better res ults than not interpolated DCFD. For high errors\, differences are reduced . An optimum DCFD delay selection also improves time resolution.\n\nhttp:/ /indico.cern.ch/contributionDisplay.py?contribId=72&sessionId=35&confId=19 099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=72&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Degradation of high resistivity FZ and Magnetic CZ N-type Silicon detectors subjected to 2-MeV Electron Irradiation DTSTART;VALUE=DATE-TIME:20080903T141000Z DTEND;VALUE=DATE-TIME:20080903T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-71@cern.ch DESCRIPTION:Speakers: Dr. RAFI\, Joan Marc ()\nParticle tracking detectors made on high resistivity (HR) float zone (FZ) silicon are widely used in high energy physics experiments. Results from the CERN RD48 and RD50 colla borations have shown that diffusion oxygenated FZ (DOFZ) silicon can bette r withstand the high hadron fluences expected for 10 years operation of th e Large Hadron Collider at CERN. Recently\, new semiconductor industry int erests and developments have enabled the production of magnetic Czochralsk i (MCZ) Si wafers with sufficiently HR and with a well-controlled high con centration of interstitial oxygen. In order to shed some further light on the behavior of the HR MCZ n-type material under electron irradiation\, we investigate here the effects of 2 MeV electron irradiation\, up to a flue nce of 5x1016 e/cm2\, on the electrical and carrier lifetime properties of p-on-n silicon diodes fabricated on different substrate materials\, inclu ding high resistivity (HR) standard and oxygenated float zone\, as well as HR magnetic Czochralski silicon. A progressive degradation of the charact eristics is observed for all devices\, pointing to a generation of bulk da mage. Interestingly\, a significant increase of the effective donor concen tration is observed after the highest fluences for all materials. This deg radation in the electrical properties should be taken into account for the use of these HR Si materials under high energy electron environments.\n\n http://indico.cern.ch/contributionDisplay.py?contribId=71&sessionId=29&con fId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=71&sessionId=29 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:CF4-filled micropattern detector aiming neutron imaging DTSTART;VALUE=DATE-TIME:20080902T141000Z DTEND;VALUE=DATE-TIME:20080902T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-70@cern.ch DESCRIPTION:Speakers: Mr. NATAL DA LUZ\, Hugo ()\nThe Micro Hole & Strip P late (MHSP) operating in a CF4 atmosphere aiming neutron imaging will be p resented. Recent results of the MHSP operation in pure xenon have shown po sition resolutions of around 300 μm and gas gains well above 10^4 for tet rafluoromethane (CF4) at atmospheric pressure. CF4 combined with 3He is ge nerally known as an efficient gas for proton and tritium stopping\, produc ed in the nuclear reaction 3He(n\,p)T\, as well as a low sensitive gamma m edium. Using resistive lines for charge division deposited perpendicularly on each side of the MHSP\, it is possible to determine where the nuclear reaction took place and to obtain the neutron image. Systematic studies of the position resolution and gas gain as a function of the CF4 pressure up to 2.6 bar will be presented.\n\nhttp://indico.cern.ch/contributionDispla y.py?contribId=70&sessionId=24&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=70&sessionId=24 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:A High Speed PC-Based Data Acquisition & Control System for Positr on Imaging DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-79@cern.ch DESCRIPTION:Speakers: Mr. LEADBEATER\, Thomas ()\nA high speed PC-based da ta acquisition system for use with positron imaging systems (e.g. ECAT sca nners designed by CTI / Siemens) is presented. This system replaces old de dicated hardware with a compact\, flexible device with the same functional ity and superior performance. Data acquisition rates of up to 80 MBytes pe r second allow coincidence data to be saved to disk for real-time analysis or post processing. The system supports the storage of time information w ith resolution of a half millisecond and remote trigger data support. Cont rol of the detector system is provided by high-level software running on t he same computer. A modular positron camera with a flexible geometry suita ble for performing Positron Emission Particle Tracking (PEPT) studies on a wide range of applications has been constructed. This camera relies on th e new data acquisition system for control\, data capture and storage\, and real time analysis of event data.\n\nhttp://indico.cern.ch/contributionDi splay.py?contribId=79&sessionId=35&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=79&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Imaging with pixellated CdZnTe detectors for use in a Portable Gam ma-Ray Spectrometer (PorGamrayS) DTSTART;VALUE=DATE-TIME:20080904T141000Z DTEND;VALUE=DATE-TIME:20080904T143000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-78@cern.ch DESCRIPTION:Speakers: Mr. DIMMOCK\, Matthew ()\nThe PorGamRayS project is developing a proof of principle Portable Gamma Ray Spectrometer to perform Compton imaging in the energy range from 60keV to 2.0MeV. This novel dete ction system will be used for the remote imaging of the radiation field in a wide range of industrial and environmental applications. It will be con structed from a stack of room temperature semiconductors that will consist of two scatter detectors and five absorber detectors. The five absorbers will be constructed from Cadmium Zinc Telluride (CdZnTe). A series of scan s with a 1mm collimated beam of 122keV gamma-rays\, from a 0.2GBq 57Co sou rce\, has been performed on a selection of these detectors. This has enabl ed their position dependent response to be investigated. Each detector is bonded to a daughter board that also incorporates the read out electronics consisting of a multi-channel Application Specific Integrated Circuit (AS IC). Two ASICs have been tested for the project and their performances hav e been assessed. Three detectors have been arranged in a Compton camera co nfiguration and a variety of sources have been imaged. The results from th e detector scans\, ASIC tests and source reconstructions will be presented .\n\nhttp://indico.cern.ch/contributionDisplay.py?contribId=78&sessionId=3 5&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=78&sessionId=35 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:DM-TPC: a TPC with optical readout for directional detection of da rk matter DTSTART;VALUE=DATE-TIME:20080901T160000Z DTEND;VALUE=DATE-TIME:20080901T162000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-41@cern.ch DESCRIPTION:Speakers: Prof. WELLENSTEIN\, Herman ()\nWe developed a TPC wi th optical readout with the goal of detecting the sense and direction of t he elastic recoils generated by Dark Matter interactions. The detector\, f illed with CF4 gas at low pressure\, is equipped with a mesh-based amplifi cation region that allows for a 2D imaging of the recoils in a CCD camera. The third coordinate of the recoil is provided by PMTs. The sense of the direction is determined by measuring the energy loss along the recoil trac k. The performance of this detector has been measured using alpha particle s\, low-energy neutrons\, and x-rays. In particular\, head-tail discrimina tion has been demonstrated for nuclear recoils down to ~100 keV. The enhan ced sensitivity to Dark Matter due to the directional measurement allows t his detector to improve on the present limits on spin-dependent interactio ns with just a few kg-year of exposure.\n\nhttp://indico.cern.ch/contribut ionDisplay.py?contribId=41&sessionId=11&confId=19099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=41&sessionId=11 &confId=19099 END:VEVENT BEGIN:VEVENT SUMMARY:Design construction & characterisation of a benchtop microPET syst em based on LYSO crystal arrays & Hamamatsu H8500 DTSTART;VALUE=DATE-TIME:20080904T165000Z DTEND;VALUE=DATE-TIME:20080904T171000Z DTSTAMP;VALUE=DATE-TIME:20130522T103902Z UID:indico-contribution-19099-47@cern.ch DESCRIPTION:Speakers: Dr. RODRIGUEZ-VILLAFUERTE\, Mercedes ()\nA microPET system for small animal studies is currently being developed at Instituto de Fisica\, UNAM. The main goal of this project is to build a cost-effecti ve benchtop system that could be suitable for research purposes. The basic design uses off-the-shelf components and is being assembled using in-hous e built readout circuits and NIM electronics. In this work we are presenti ng the initial tests of the first detection modules that have been assembl ed. The modules are based on pixelated scintillator LYSO crystal arrays co upled to position sensitive photomultiplier tubes\, with a resistive chain readout system. Pulse conditioning is performed with nuclear instrumentat ion modules\, and its digitization is performed with a fast analog-to-digi tal data acquisition board. The uniformity\, cross-talk and aperture funct ion of the photomultipliers have been measured. The modules are able to id entify individual crystals (out of 400) with a 4 to 1 peak-to-valley ratio . The measured energy resolution of 22Na spectra in individual crystals ar e between 7 and 15%\, the dead time of the system is between 17 and 42 μs depending on the source volume\, and the resolving time is 1.16 +/- 0.01 ns. The detection modules were used to obtain the first tomographic images of a 30 g mouse with 18F sodium fluoride. The design and characterization of the system includes Monte Carlo simulations of the detectors.\n\nhttp: //indico.cern.ch/contributionDisplay.py?contribId=47&sessionId=36&confId=1 9099 LOCATION:University of Glasgow URL:http://indico.cern.ch/contributionDisplay.py?contribId=47&sessionId=36 &confId=19099 END:VEVENT END:VCALENDAR