Dr
Dave Langstaff
(Aberystwyth University)
12/09/2011, 09:15
Prof.
Philip Patrick Allport
(University of Liverpool (GB))
12/09/2011, 09:25
Dr
Takeshi Nakamori
(Waseda University)
12/09/2011, 09:40
We have developed a new type of large-area monolithic Multi-Pixel Photon Counter (MPPC) array consisting of a 4x4 matrix of 3x3 mm^2 pixels. Each pixel comprises 3600 Geiger mode avalanche photodiodes that achieve an average gain up to 10^6 with variations of only +/- 7% over 4x4 pixels. Excellent uniformity was also obtained for photon detection efficiencies (PDE) of +/-6%. We fabricated a...
Christopher Stapels
(Radiation Monitoring Devices)
12/09/2011, 10:00
Nuclear imaging applications, such as PET, often use position-sensitive photodetectors coupled to scintillation detectors, to determine the location and energy of the event in a scintillation detector. Coupling nuclear imaging techniques to magnetic-resonance imaging, for morphological images, introduces a strong magnetic field that constrains the choice of photodetector. Solid-state...
Dr
Thomas Leadbeater
(University of Birmingham)
12/09/2011, 10:20
By detecting the back-to-back gamma ray emissions from a positron emitting tracer particle high speed and accurate tracking can be achieved as it moves throughout the field of view of a positron camera; this forms the basis of the technique Positron Emission Particle Tracking (PEPT), developed at Birmingham for over 25 years. The ability to track either particles or neutrally buoyant flow...
Dr
Bjoern Seitz
(Glasgow University)
12/09/2011, 11:10
Applications in Nuclear Physics
Invited Oral
Modern experiments in hadronic physics require detector systems capable of identifying and reconstructing all final-state particles and their momentum vectors. Imaging Cherenkov counters (RICH and DIRC) are frequently employed in nuclear and particle physics experiments, These detectors require high-rate, single-photon capable light detection system with sufficient granularity and position...
Dr
David Hall
(The Open University)
12/09/2011, 11:50
Detectors for Synchrotron Radiation and Spallation Neutron Sources
Oral Presentation
Four years ago, a study of back-illuminated Charge-Coupled Devices (CCDs) for soft X-ray photon detection demonstrated the improvements that could be brought over more traditional micro-channel plate detectors for X-ray spectrometers based on diffraction gratings and position sensitive detectors [1]. Whilst the spatial resolution was reported to be improved dramatically, an intrinsic limit of...
Dr
Valeria Radicci
(Paul Scherrer Institute)
12/09/2011, 12:10
Detectors for Synchrotron Radiation and Spallation Neutron Sources
Oral Presentation
EIGER is the next generation of single photon counting detector for synchrotron radiation designed by the PSI-SLS detector group. It features a pixel size of 75x75 μm2 and frame rates up to 22kHz. An array of 256x256 pixels fits on a 2cm x 2cm chip. The chip provides 4, 8 and 12 bit counting modes and practically an infinite dynamic range (32 bits) due to the continuous read/write and the...
Dr
Jonathan Hallam
(Univeristy of Leicester)
12/09/2011, 12:30
Optical spectroscopy is a powerful tool for the measurement of atmospheric gases and changes to atmospheric composition. For example, global measurements of ozone (and other species) are updated daily from satellite observations using essentially the same spectroscopic principles. The strength of spectroscopic methods at visible, UV or IR wavelengths lies in (i) their selectivity, which makes...
Carlos Huggins
(Systems Technology Innovation Centre)
12/09/2011, 13:50
After a degree in Natural Sciences (especially Physics and Maths), and an MSc in Semiconductor Science, Carlos Huggins went into industrial R&D and technology management,. Over 22 years he has had contributed as a Gallium Arsenide epitaxial grower and device designer for defence imaging and space power applications; worked on fibre optic devices and pump laser structures for...
Dr
Igor Kreslo
(LHEP, Uni-Bern)
12/09/2011, 15:30
Detection of explosives in large cargo containers is an important preventive measure to counteract terrorism. The element-sensitive radiography with gamma-rays is one promising method, allowing to selectively detect Nitrogen content in various materials, which is a reliable signature of most of commercial explosives.
A novel high-resolution tracking detector sensitive to 9.17 MeV Nitrogen...
Dr
John Osmond
(The Institute of Cancer Research & The Royal Marsden NHS Trust)
12/09/2011, 16:30
In order to minimise the dose delivered to healthy tissue during radiotherapy treatment of a moving tumour, it is first necessary to accurately measure tumour position as a function of time. For example, a portal imager can be used to detect surrogate markers implanted around the tumour in order to track the tumour with a moving collimator. Lung tumours can move at up to ~20 mm/s, requiring...
Dr
Laura Harkness
(Department of Physics, University of Liverpool)
12/09/2011, 16:50
Single Photon Emission Computed Tomography (SPECT) systems employ a gamma camera to locate a radioactive tracer which has been administered to a patient to study specifically targeted physiological processes. A typical system is composed of scintillation detectors coupled to a mechanical collimator which allows the distribution of the radiation to be inferred. However, use of the collimator...
John Lees
(University of Leicester)
12/09/2011, 17:10
Dr
Johan Bregeon
(INFN sez. di Pisa)
13/09/2011, 09:00
The Large Area Telescope (LAT) is the primary instrument onboard the Fermi Gamma-ray Space Telescope (Fermi),
an observatory on a low earth orbit that was launched on 11 June 2008 to monitor the high energy gamma-ray sky. The LAT tracker is a solid-state instrument :
tungsten foils converts the gamma rays into electron-positron pairs which are then tracked in silicon planes in order to...
Dr
John Lees
(University of Leicester)
13/09/2011, 09:20
New types of detectors based on the wide band gap material AlGaAs have been developed for soft X-ray spectroscopy applications. We report on the spectroscopic performance of simple p-i-n diodes and avalanche photodiodes (APDs). A number of diode types with different layer thicknesses have also been characterised. X-ray spectra from a 55Fe radioactive source show these diodes can be used for...
Anthony Sweeney
(University of Liverpool)
13/09/2011, 09:40
Homeland security agencies have a requirement to be able to locate and identify radionuclides which decay via gamma ray emission. One possible solution is the use of a Compton camera [1,2]. A prototype planar semiconductor Compton imaging device is under development at the University of Liverpool in partnership with the Atomic Weapons Establishment (AWE). Compton cameras offer higher detection...
Wladyslaw Dabrowski
(AGH University of Science & Technology)
13/09/2011, 10:00
1-D position sensitive X-ray detectors based on silicon strip detector technology have become a standard for x-ray diffraction instrumentation. They are widely used with laboratory equipment but also at powder XRD beam lines. As these devices have been proven to be very useful due to their measurement speed and angular resolution, the implementation of further improvements of their performance...
Dr
Beniamino Di Girolamo
(CERN)
13/09/2011, 11:10
The talk will overview the big variety of detectors deployed by the experiments at LHC, their performance and few example of physics results obtained so far, with emphasis on techniques and results in ATLAS. An analysis and a comparison will be done to show the reasons of the choices made. Finally a roadmap of the foreseen improvements and upgrades will be covered.
Dr
Joleen Pater
(Manchester Universirty)
13/09/2011, 11:50
The SemiConductor Tracker (SCT), comprising of silicon micro-strip detectors is one of the key precision tracking devices in the ATLAS Inner Detector. ATLAS is one of the experiments at CERN LHC.
The completed SCT is in very good shapes with 99.3% of the SCT’s 4088 modules (a total of 6.3 million strips) are operational. The noise occupancy and hit efficiency exceed the design...
Dr
Carolina De Luca
(SUNY)
13/09/2011, 12:10
The ATLAS Pixel Detector is the innermost detector of the ATLAS experiment at the Large Hadron Collider at CERN, providing high-resolution measurements of charged particle tracks in the high radiation environment close to the collision region. This capability is vital for the identification and measurement of proper decay times of long-lived particles such as b-hadrons, and thus vital for the...
Prof.
Jochen Schieck
(Ludwig-Maximilians-Universität München)
13/09/2011, 12:30
ATLAS is a multipurpose experiment that records the LHC collisions. In order to reconstruct trajectories of charged particle, ATLAS is equipped with a tracking system built using different technologies, silicon planar sensors (pixel and microstrips) and drift-tube detectors. In order to achieve its scientific goals, the ATLAS tracking system requires to determine accurately its almost 700,000...
Prof.
Manuel Grande
(Aberystwyth University)
13/09/2011, 13:50
Oral Presentation
Prof.
Mark Sims
(Leicester University)
13/09/2011, 14:05
Applications in Astronomy, Planetary and Space Science
Invited Oral
The Life Marker Chip (LMC) instrument aims to detect organic molecules on Mars as part of the 2018 planned ESA/NASA rover mission. The LMC is based around use of immuno-assay technology from bio-technology where a molecular receptor binds to a target molecule. This binding is detected using fluorophores attached to the molecular receptor. High sensitivity (ppm to ppb) can in principle be...
Mr
Thomas Walker
(Brunel University)
13/09/2011, 14:45
Applications in Astronomy, Planetary and Space Science
Oral Presentation
The Chandrayaan-1 X-ray Spectrometer (C1XS) was launched onboard the Indian Space Research Organisation (ISRO) Chandrayaan-1 lunar mission in October 2008. The instrument consisted of 24 swept-charge device (SCD) silicon X-ray detectors providing a total collecting area of ~24 cm2, corresponding to a 14° field of view (FWHM), with the ability to measure X-rays from 0.8 - 10 keV. One algorithm...
Brian Ramsey
(NASA/Marshall Space Flight Center)
13/09/2011, 15:05
Applications in Astronomy, Planetary and Space Science
Oral Presentation
We are developing a sensitive spectrometer for measuring abundances of light elements fluoresced by ambient radiation. Based on a Silicon Drift Detector (SDD) with custom readout electronics, the instrument offers high energy resolution and large-area coverage, yet with modest power and cooling requirements. The goal of the development program is to build a detector array that can be scaled to...
Dr
Tetsuya Mizumoto
(Kyoto University)
13/09/2011, 15:25
Applications in Astronomy, Planetary and Space Science
Oral Presentation
We have developed a Compton camera that can determine the arrival directions of sub-MeV/MeV gamma rays for gamma-ray astronomy observations. This is a hybrid detector consisting of a gaseous TPC, which has a two-dimensional position sensitive gaseous detector with pixel anode electrodes at a pitch of 400 micrometers, and a position-sensitive scintillation camera enclosing the TPC. Some...
Dr
Colin Wilburn
(Micron Semiconductor)
13/09/2011, 16:20
Applications in Astronomy, Planetary and Space Science
Invited Oral
Mr
Robert Bedington
(UCL - MSSL)
13/09/2011, 17:00
Applications in Astronomy, Planetary and Space Science
Oral Presentation
Low energy plasma spectrometers for space science typically use micro channel plates (MCPs) with position sensitive anodes as detectors behind their analyser heads (electrostatic optic energy selecting filters). MCPs however require high vacuums and high voltages which can add challenges and complications for the design and implementation of an instrument.
As an alternative at MSSL we...
Prof.
Manuel Grande
(Aberystwyth University)
13/09/2011, 17:20
Paul Seller
(Rutherford Appleton Laboratory)
14/09/2011, 09:00
Poster Presentation
A novel pixellated energy resolving x-ray detector is used in a combined energy dispersive and angular dispersive x-ray diffraction set-up enabling the acquisition of multiple scatter angles without the use of multi-collimation between the sample and the detector, using narrow beam geometry. A system with 20x20 pixels of 250x250μm pitch and Cadmium Telluride detector material is used to...
Dr
Kentaro Toh
(J-PARC center, Japan Atomic Energy Agency)
14/09/2011, 09:00
Poster Presentation
A median point calculating method was introduced to the wavelength-shifting-fibre based neutron image detector to increase the spatial resolution. The detector was originally developed for the neutron diffraction instrument, SENJU, at the Japan Proton Accelerator Research Complex J-PARC. The detector head was comprised of 64x2 of wavelength shifting fibres placed in x, and y directions each in...
Dr
Changwoo Seo
(Korea Electrotechnology Research Institue)
14/09/2011, 09:00
Poster Presentation
The Cone-Beam Computed Tomography (CBCT) system has been widely used for medical diagnostic and surgical application. However, the 3D reconstructed images in CBCT are significantly affected by a variety of vibrations of the operating gantry system.
In this work, the geometric calibration in our developing CBCT was performed and analyzed in order to solve these problems by using a high-speed...
Mr
Jamie Dormand
(University of Liverpool)
14/09/2011, 09:00
Poster Presentation
We present an approach of applying Pulse Shape Analysis to preamplifier charge pulses from a planar High Purity Germanium (HPGe) semiconductor γ-ray detector to improve interaction position resolution through depth. This leads to an improvement in the quality of images reconstructed by Compton camera systems that are comprised of such detectors. Algorithms that achieve this and recent...
Mr
Matthew Soman
(Open University)
14/09/2011, 09:00
Poster Presentation
When X-rays interact in the ‘field free’ region of a back illuminated Charge Coupled Device (CCD) they form clouds of electrons that diffuse outwards in a stochastic fashion. These electrons can diffuse into neighbouring pixels before being contained in the potential wells beneath the electrodes. This process leads to signal electrons from a single interaction event being spread across...
Ms
Samantha Colosimo
(University of Liverpool)
14/09/2011, 09:00
Poster Presentation
The Advanced GAmma Tracking Array, AGATA, is part of a new generation of highly segmented hyper-pure germanium (HPGe) gamma-ray detection arrays that are currently being developed for use at low-yield, high background radioactive ion beam facilities. AGATA aims to utilize gamma-ray tracking in order to add-back scattered gamma-rays that would be vetoed in arrays with a Compton suppression...
Mr
Malte Backhaus
(Universität Bonn, Physikalisches Institut)
14/09/2011, 09:00
Poster Presentation
on behalf of ATLAS IBL collaboration
For the ATLAS pixel detector, a fourth hybrid pixel detector layer known as Insertable B-Layer (IBL) is developed, which will be slid into the present pixel detector. Due to the very small distance to the interaction point of about 3.4 cm, the IBL will improve the track reconstruction and vertexing of the pixel detector. In order to handle the extreme...
Prof.
Anatoly Maltsev
(JINR)
14/09/2011, 09:00
Poster Presentation
The complex of distant noncontact diagnostic devices for the correlated measurements of key parameters and characteristics of fast electro-nuclear and transmutational processes (t = 1 mksec) in nuclear-energetic installation is presented.
Complex contains the detectors of the gamma-, X-ray- and infrared-radiations, which work in a real-time mode in the line from a computer.
Mr
Koichi Todoroki
(University of Tokyo)
14/09/2011, 09:00
Poster Presentation
ASACUSA will attempt to measure the A-dependence of the antiproton-nucleus annihilation cross sections for the first time in the energy region where it is expected to deviate significantly from the A^(2/3)-law established at higher energies, using CERN’s Antiproton Decelerator and ASACUSA’s radio-frequency quadrupole decelerator, the combination of which provides 100-ns-long pulses each...
Dr
Haris Kudrolli
(Radiation Monitoring Devices)
14/09/2011, 09:00
Poster Presentation
Technological innovations in grazing incidence X-ray optics have been crucial to the advancement of the field of X-ray astronomy. These X-ray focusing optics are capable of improving the sensitivity of X-ray telescopes operating in the energy range above 10 keV by orders of magnitude. Full characterization of the X-ray optics includes measurement of the point spread function, scattering, and...
Dr
Takeshi Nakamori
(Waseda University)
14/09/2011, 09:00
Poster Presentation
It is important to obtain wide band X-ray/gamma-ray spectra at the same time in order to probe efficiently the emission processes or the structures of transient object such as gamma-ray bursts. We have developed, for future missions, an X-ray/gamma-ray detector utilizing reach-trough type avalanche photodiode (APD) array (8- and 16-segments) with the area of 1.6x1.8 cm^2. Excellent uniformity...
Mr
James Tutt
(The Open University)
14/09/2011, 09:00
Poster Presentation
EM-CCDs are commonly used for the detection of optical light, but seldom for X-ray detection partially due to the high energy and large charge packets that are generated at these energies. Through the analysis of high energy X-ray events it has been possible to show that the noise generated by the stochastic nature of the gain multiplication process in EM-CCDs can be minimised by operating at...
Carlo Fiorini
(Politecnico di Milano and INFN sez MI, Italy)
14/09/2011, 09:00
Poster Presentation
We present the analog front-end for the readout of non-linear DEPFET pixels designed in the framework of the European X-ray Free Electron Laser (XFEL). The facility is under construction in Hamburg (Germany). The proposed electronics is developed to be implemented in a 1-Megapixel X-ray detector system with single photon resolution at 1keV operating at a maximum frame-rate of 4.5MHz.
Due to...
Dr
Kentaro Toh
(Japan Atomic Energy Agency)
14/09/2011, 09:00
Poster Presentation
Some neutron scattering experiments performed at high-intensity pulsed neutron facilities located in Japan, the United States, and the United Kingdom require advanced two-dimensional neutron detectors that have features such as a short response time, good spatial resolution, and high detection efficiency. To this end, we are currently developing a two-dimensional position-sensitive neutron...
Mr
Takamasa Miura
(Waseda University)
14/09/2011, 09:00
Poster Presentation
The performance of a large-area, monolithic Hamamatsu Multi-Pixel Photon Counter(MPPC) was tested consisting of a 2x2 array of 3x3 mm2 pixels. MPPC is a novel type of semiconductor photodetector comprising multiple avalanche photodiode (APD) pixels operated in Geiger mode. Despite its great advantage of signal multiplication comparable to that achieved with the photomultiplier tube (PMT), the...
Prof.
Victor Samedov
(National Research Nuclear University (Moscow Engineering Physics Institute))
14/09/2011, 09:00
Poster Presentation
In order to locate particle position, it is necessary to have several signals of spaced detectors, since the amplitudes of these signals depend on the particle interaction point. For all position sensitive detectors the crucial characteristic for using as tracking or imaging detector is the accuracy of coordinate determination. The position resolution is closely connected not only with the...
Dr
Brad Cann
(University of Leicester), Dr
Lapington Jon
(University of Leicester), Mr
Virgil Taillandier
(University of Leicester)
14/09/2011, 09:00
Poster Presentation
The requirement to accurately detect and image very high speed photon events is crucial for many applications across a range of disciplines. Photon imaging detectors often make use of the planar geometry of MCP’s for high resolution imaging. However, the inherent rate limitations of MCP’s provide opportunities for discrete dynode devices where rapid recharge times and high throughput are...
Dr
Dominic Duxbury
(Science and Technnology Facilities Council, RAL)
14/09/2011, 09:00
Poster Presentation
Over the last few years several investigations have been undertaken to ascertain the suitability of gaseous electron multipliers (GEMs) for use as a neutron detector on the ISIS spallation neutron source. Our initial investigations focussed purely on whether these devices could be operated at the elevated pressure of 3He and CF4 necessary for 1mm position location (2.6 bars of CF4). In fact we...
Mr
Anthony Evagora
(The Open University)
14/09/2011, 09:00
Poster Presentation
The pre-amplifier, multi-stage, charge multiplication process used in the Electron Multiplying CCD (EMCCD) is subject to an ageing effect in which the gain achieved at particular avalanche potentials, decreases during operation. To utilise these devices for both space and terrestrial applications where recalibration of the gain is not feasible a comprehensive understanding of the ageing...
Dr
Konstantin Toms
(University of New Mexico)
14/09/2011, 09:00
We describe the implementation of radiation damage monitoring using leakage current measurement of the silicon pixel sensors provided by the circuits of the ATLAS Pixel Detector high voltage delivery system. The dependence of the leakage current upon the integrated luminosity for several temperature scenarios is presented. Based on the analysis we have determined the sensitivity...
Dr
Elena Verbitskaya
(Ioffe Physical Technical Inst. RAS)
14/09/2011, 09:00
Poster Presentation
Recent results on the collected charge Qc in heavily irradiated Si detectors developed by RD50 collaboration for SuperLHC showed a significant Qc enhancement if detectors were operated at the bias voltage beyond 1000 V. Our investigations showed that this enhancement arises from a fundamental effect of carrier avalanche multiplication in high electric field of n+-p junction. The goal of the...
Mr
Bo Kyung Cha
(KERI), Mr
Dae Hee Lee
(KAIST), Mr
Dong-uk Kang
(KAIST), Mr
Hyunjun Yoo
(KAIST), Mr
Jun Hyung Bae
(KAIST), Mr
Minsik Cho
(KAIST)
14/09/2011, 09:00
Poster Presentation
Recently, CMOS Image Sensors (CIS’s) are becoming candidate solution for digital mammography (DM) systems due to relatively low cost, high speed and possibility to integrate signal processing electronics. Therefore, it is very important to optimize the performance of the CMOS-based photodiode combined with the scintillator for DM. In this research, we compared the performance of four different...
Mr
Thomas Conneely
(University of Leicester and Photek LTD)
14/09/2011, 09:00
The requirements of high energy, high luminosity particle accelerators, particularly the Large Hadron Collider at CERN, has driven the development of a range of Application Specific Integrated Circuits (ASICs) able to cope with extremely high event rates and data throughput, while maintaining picosecond timing resolution in the region of 10-100 ps incorporated in a high channel density design....
Mr
Tobias Wittig
(TU Dortmund)
14/09/2011, 09:00
The pixel detector is the innermost tracking detector of ATLAS which requires hermeticity to achieve superb track reconstruction performance. The current planar n-type sensors feature an active pixel matrix of n+ implantation and, so called, guard rings on the opposite p-side to reduce the high voltage stepwise. Because of the inactive safety margin around the active area, the sensor modules...
Ms
Anna Soter
(Max Planck Institute of Quantum Optics, Germany)
14/09/2011, 09:00
Poster Presentation
The ASACUSA experiment at CERN is now constructing 530-channel position-sensitive scintillation detectors and its FPGA-based readout electronics to measure and track high rates of charged pions emerging from antiproton annihilations in a future radiofrequency Paul trap for antiprotons. Each channel is read out by a wavelength shifting (WLS) fiber and 1600-pixel silicon photomultiplier (MPPC)....
Mr
André Rummler
(TU Dortmund)
14/09/2011, 09:00
Poster Presentation
ATLAS plans two major upgrades of its pixel detector on the path to HLLHC: First, the insertion of a 4th pixel layer (Insertable B-Layer, IBL) is currently being prepared for 2013. This will enable the ATLAS tracker to cope with an increase of LHC's peak luminosity to about 3E34 cm^-2 s^-1 which requires a radiation hardness of the sensors of up to 5E15 n_eq cm^-2. Towards the end of this...
Dr
Alexander Dierlamm
(Inst. fuer Experimentelle Kernphysik, KIT)
14/09/2011, 09:00
Poster Presentation
CMS started a campaign to identify the future silicon sensor technology baseline for a new Tracker for the high-luminosity phase of LHC. We ordered a large variety of 6” wafers in different thicknesses and technologies at HPK. Thicknesses ranging from 50µm to 300µm are explored on floatzone, magnetic Czochralski and epitaxial material both in n-in-p and p-in-n versions. P-stop and p-spray are...
Xerviar Omeime Esebamen
(Mid Sweden University)
14/09/2011, 09:00
Poster Presentation
There is an ever growing need for highly effective electron detectors with high responsivity. One of the parameters that has been shown to have a negative influence on the responsivity of a radiation detector is the surface recombination velocities of minority carriers at the Si-SiO2 interface. With the n+p detector discovered to possess better responsivity than a p+n detector at any given...
Dr
Hideshi Yamagishi
(Japan Atomic Energy Agency)
14/09/2011, 09:00
Poster Presentation
Two-dimensional gas-based neutron detectors having a fast response time and high spatial resolution are required for some neutron scattering experiments performed using a high-intensity spallation neutron source at the Materials and Life Science Experimental Facility at J-PARC. We are currently developing a multiwire-type two-dimensional neutron detector system for use in such scattering...
Ms
Rachel Cross
(University of Wales, Aberystwyth)
14/09/2011, 09:00
A one dimensional electron counting detector array for electron spectroscopy applications is presented. The array uses a microchannel plate in conjunction with a custom ASIC.
The detector assembly is fitted at the focal plane of the CLAM4 hemispherical energy analyser and enables imaging across the width of the focal plane. The electron energy analyser is built into a system specifically...
Dr
Masaki Hori
(Max-Planck Institute for Quantum Optics)
14/09/2011, 09:00
Poster Presentation
The Linac4, now being constructed at CERN, will provide 160-MeV H- beams of high intensity of 2x10^14 ions/s. Some sequences of 500-ps-long micro-bunches must be removed from the beam using a chopper before the H- ions can be further accelerated in the Proton Synchrotron. We developed a monitor to measure the time structure and spatial profile of this high-intensity chopped beam, with...
Ms
Paz García de Acilu
(CIEMAT)
14/09/2011, 09:00
Poster Presentation
We are developing a PET insert for existing MRI equipment to be used in clinical PET/MR studies of the human brain. The proposed scanner is based on annihilation gamma detection with monolithic blocks of cerium-doped lutetium yttrium orthosilicate (LYSO:Ce) coupled to magnetically-compatible APD matrices. The light distribution generated on the LYSO:Ce block provides the impinging position of...
Bo Kyung Cha
(KERI)
14/09/2011, 09:00
Poster Presentation
In the last decade, digital X-ray imaging detectors using CCD arrays, CMOS and amorphous silicon flat panel (a-Si:H) in combination with various scintillation screens have been widely used for medical and industrial applications. The conventional scintillators such as thallium-doped cesium iodide (CsI:Tl) and terbium-doped gadolinium oxysulphide(Gd2O2S:Tb) and europium-doped gadolinium...
Dr
Fernando Amaro
(GIAN, Physics Dept., Coimbra University, Portugal)
14/09/2011, 09:00
Poster Presentation
One of the challenges of modern Time Projection Chambers (TPC) is to prevent the re-injection of the secondary ions produced on the gas amplification layer into the sensitive volume of the detector. Particularly in high multiplicity TPC the presence of positive ions has the potential to affect the tracking properties of the detector due to space charge effects.
The use of the secondary...
Marius Bjornstad
(University of Manchester)
14/09/2011, 10:50
LHCb is a dedicated experiment to study new physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The beauty and charm hadrons are identified through their flight distance in the Vertex Locator (VELO), and hence the detector is critical for both the trigger and offline physics analyses. The VELO is the highest resolution vertex detector at the...
Giacomo Contin
(Dipartimento di Fisica-Universita degli Studi di Trieste / INFN Sezione di Trieste)
14/09/2011, 11:10
The Inner Tracking System (ITS) of the ALICE experiment is made out of six layers of silicon detectors exploiting three different technologies (pixel, drift and strip). It covers the central pseudorapidity range of |η| < 0.9 and its distance from the beam line ranges from r = 3.9 cm for the innermost pixel layer up to r = 43 cm for the outermost strip layer. The main tasks of the ITS are to...
Carlos Marinas Pardo
(University of Bonn)
14/09/2011, 11:30
An upgrade of the existing Flavour Factory KEKB (Tsukuba, Japan) is under construction, and is foreseen for commissioning by the end of 2014. This new e+e- machine ("SuperKEKB") will deliver an instantaneous luminosity of 8x1035 cm-2s-1, which is 40 times higher than the the world record set by KEKB.
In order to be able to fully exploit the increased number of events and provide high...
Dr
Elena Martin
(Catholic University of Louvain)
14/09/2011, 11:50
The Gigatracker (GTK) is a hybrid silicon pixel detector developed for NA62, the experiment studying ultra-rare kaon decays at the CERN SPS. Three GTK stations will provide precise momentum and angular measurements on every track of the high intensity NA62 hadron beam with a time-tagging resolution of 150ps. Multiple scattering and hadronic interactions of beam particles in the GTK has to be...
Filip THYSSEN
(Universiteit Gent)
14/09/2011, 12:10
Resistive Plate Chambers (RPCs) are used in the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) as a dedicated trigger detector. Moreover, they contribute to the muon identification and reconstruction alongside Drift Tubes and Cathode Strip Chambers.
The operational experience after more than one year of LHC collisions and the performance of the RPC detector during...
Ms
Daniela Bassignana
(IMB-CNM CSIC)
14/09/2011, 12:30
We have developed a novel 2D position-sensitive semiconductor detector manufactured using the conventional planar technology used in the production of single-side AC-coupled microstrips sensors. In the new device the coupling electrode
is made of a slightly resistive material being read out at both ends. The balance between the recorded charges at both electrode ends is used to define an...
Jan Jakubek
(Institute of Experimental and Applied Physics, Czech Technical University in Prague)
14/09/2011, 13:50
In radiation imaging applications the pixel detectors are so far mostly operated in single particle counting mode. In this mode the signal generated by the particle is compared with a certain preselected energy threshold to remove noise and, if higher, it is counted in a digital counter. Such approach provides low noise, energy discrimination and absolutely linear image accumulation. Resulting...
Dr
Patrick Gill
(Cornell University)
14/09/2011, 14:30
In 2008 at Cornell, we developed a new class of optical sensor made in standard CMOS: the angle sensitive pixel (ASP). ASPs have allowed us to develop several optical innovations including the Planar Fourier Capture Array (PFCA) in 2011: the first camera without lenses, mirrors or moving parts. PFCAs capture the Fourier transform of the far-away scene directly without external optics. The...
Mr
Jaya John John
(Department of Physics, University of Oxford)
14/09/2011, 15:10
PImMS, or Pixel Imaging Mass Spectrometry, is a novel high-speed CMOS imaging sensor tailored to mass spectrometry requirements, also suitable for other dark-field applications. In its application to mass spectrometry, the sensor permits Time of Flight information to be combined with 2D imaging, gaining additional information about the initial position or velocity of ions under study. PImMS1,...
Philipp Weigell
(MPI für Physik)
14/09/2011, 15:30
A new pixel module concept for future ATLAS pixel detector upgrades is presented, where thin n-in-p sensors are connected to the front-end chip exploiting the novel Solid Liquid Interdiffusion technique (SLID) and the signals are read out via Inter Chip Vias (ICV) etched through the front-end. This should serve as a proof of principle for future four-side buttable pixel assemblies for the...
Dr
Markus Kuster
14/09/2011, 16:10
Detectors for FELs and other advanced light sources
Invited Oral
The European X-ray Free Electron Laser (XFEL) will provide as-yet-unrivaled peak brilliance and ultra-short pulses of spatially coherent X-rays with a pulse length of less than 100 fs in the energy range between 0.25 and 25 keV. The high radiation intensity and ultra-short pulse duration will open a window for novel scientific techniques and will allow to explore new phenomena in biology,...
Joern Schwandt
(Institute for Experimental Physics, Hamburg University, Germany)
14/09/2011, 16:50
Detectors for FELs and other advanced light sources
Oral Presentation
The European X-ray Free Electron Laser (XFEL) will deliver 30,000 fully coherent, high brilliance X-ray pulses per second with a duration below 100 fs. This will allow to record diffraction patterns of single molecules and study ultra-fast processes.
One of the detectors under development for the XFEL is the Adaptive Gain Integrating Pixel Detector (AGIPD), which consists of a classical...
Dr
Julian Becker
(DESY)
14/09/2011, 17:10
Detectors for FELs and other advanced light sources
Oral Presentation
The European XFEL, currently under construction at DESY in Hamburg, will produce coherent X-ray pulses every 222 ns in a bunch train of up to 2700 pulses. In conjuction with the fast 2D area detectors currently under development, it will be possible to perform X-ray photon correlation spectroscopy (XPCS) on microsecond timescales.
In XPCS experiments using pixel detectors usually the...
Dr
Julian Becker
(DESY)
14/09/2011, 17:30
Oral Presentation
One of the main advantages of the European XFEL is its fast bunch repetition frequency of 4.5 MHz.
The XFEL will provide bunch trains of up to 2700 bunches every 222 ns, followed by an idle time of 99.4 ms, resulting in a supercycle of 10 Hz and 27000 bunches per second. Correspondingly fast 2D detectors such as AGIPD are being developed. Thiswill allow investigations with various techniques...
Dr
Andrew Blue
(University of Glasgow)
14/09/2011, 17:50
Detectors for FELs and other advanced light sources
Oral Presentation
The imaging of soft X-ray images is typically performed with CCDs. However, these have limited readout speed, dynamic range and also require significant cooling to obtain the required signal to noise ratio.
Active pixel sensors (APS) are able to combine faster readout speeds and higher dynamic range with in-pixel intelligence to allow region of interest readout and adaptive gain. To obtain...
Prof.
Robert Ott
(Institute of Cancer Research)
15/09/2011, 09:30
A large area CMOS active pixel sensor(LAS)has been investigated to study its potential application to Nuclear Medicine imaging. LAS consisted of 1350 x 1350 40 micron pixels with noise levels of ~40e. The sensor was coupled directly to both segmented and unsegmented 2mm thick CsI(Tl) crystals. The segmented crystal contained 400 micron x 400 micron pixels seperated by ~100 microns of...
Michela Esposito
(Centre for Vision, Speech and Signal Processing, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH,U.K.)
15/09/2011, 09:50
Wafer scale detector technology represents an alternative approach for biomedical imaging where currently Flat Panel Imagers (FPIs) are the most common option. However, FPIs possess several key drawbacks such as large pixels, high noise, low frame rates, and excessive image artifacts. Recently Active Pixel Sensors have gained popularity overcoming such issues and are now scalable up to wafer...
Carlo Fiorini
(Politecnico di Milano and INFN sezione di milano,Italy)
15/09/2011, 10:10
Particle therapy plays nowadays an important role in cancer treatment and growing research efforts are directed in this direction. In particular, strength of proton therapy, is related to the possibility to release the maximum of the dose in the target site destroying tumoral cells and limiting otherwise the dose to normal tissue. For this purpose, the measurement of the proton beam range in...
Dr
Jon Lapington
(University of Leicester)
15/09/2011, 10:30
We describe a 256 channel microchannel plate-based multi-anode photomultiplier camera system with integrated electronics designed for picosecond photon timing applications at very high throughput. The system was designed primarily for high content applications in life sciences, such as high throughput fluorescence lifetime microscopy, fluorescence correlation spectroscopy, and other...
Paul Dervan
(Department of Physics-Oliver Lodge Laboratory-University of Liv)
15/09/2011, 11:10
Detectors for High Radiation and Extreme Environments
Oral Presentation
While the Large Hadron Collider (LHC) at CERN is continuing to deliver an ever-increasing luminosity to the experiments, plans for an upgraded machine called Super-LHC (sLHC) are progressing. The upgrade is foreseen to increase the LHC design luminosity by a factor ten. The ATLAS experiment will need to build a new tracker for sLHC operation, which needs to be suited to the harsh sLHC...
Dr
Javier Galan
(CEA Saclay)
15/09/2011, 11:30
MicroPattern Gaseous Detectors (MPGD) made of resistive strips have rised as a promising technology for the protection against spark processes having place in the gaseous chamber. The reproduction of the signals and its propagation through the resistive foil is mandatory to better understand its behaviour and optimise the key parameters which might depend on the application requirements. In...
Tobias Wittig
(Technische Universitaet Dortmund (DE))
15/09/2011, 11:50
Detectors for High Radiation and Extreme Environments
Oral Presentation
To extend the physics reach of the LHC, upgrades to the accelerator are planned which will increase the peak luminosity by a factor 5 to 10. This will lead to increased occupancy and radiation damage of the inner trackers.
To cope with the elevated occupancy, the ATLAS experiment plans to introduce an all-silicon inner tracker with the HL-LHC upgrade. With silicon, the occupancy can be...
Prof.
Phil Allport
(University of Liverpool)
15/09/2011, 12:10
Detectors for High Radiation and Extreme Environments
Oral Presentation
The use of segmented silicon detectors for tracking and vertexing in particles physics has grown substantially since their introduction in 1980. It is now anticipated that not less than 50,000 six inch wafers of high resistivity silicon will need to be processed into sensors to be deployed in the upgraded experiments in the future high luminosity LHC at CERN.
These detectors will also face an...
Jan Olzem
(DESY Hamburg)
15/09/2011, 12:30
Detectors for High Radiation and Extreme Environments
Oral Presentation
The luminosity upgrade of the Large Hadron Collider is foreseen to proceed in two phases. An eventual factor-of-ten increase in LHC statistics will have a major impact in the LHC Physics program. However, the HL-LHC as well as offering the possibility to increase the physics potential will create an extreme operating environment for the detectors, particularly the tracking devices and the...
Dr
Helen Boston
(Liverpool University)
15/09/2011, 13:50
The nucleus is a unique, strongly interacting many-body system. There are many techniques and reactions to study different features of the nucleus which all rely on the detection of charged particles or gamma-rays. Each major technical advance in detection devices has resulted in significant new insights into nuclear science. As the systems evolve more exotic features of the nucleus can be...
Dr
Vladimir Eremin
(Ioffe Physical Technical Institute RAS)
15/09/2011, 14:30
The NUSTAR experiments in program FAIR (Facility for Antiproton and Ion Research) that are developed now in GSI require unique spectrometers for heavy ions which energy is ranged starting from hundred keV up to hundreds MeV. The spectrometers are constructed on the basis of silicon double sided detectors which must provide the energy and the hit point position.
The double sided detectors for...
Dr
Steven Moon
(University of Liverpool)
15/09/2011, 14:50
The Advanced Gamma Tracking Array (AGATA) project is a pan-European collaboration whose aim is the construction of a next-generation gamma-ray spectrometer for use in nuclear structure studies. The final array will consist of 180 (coaxial) HPGe crystals arranged in a spherical honeycomb geometry. Utilising the technique of gamma-ray tracking, the array will significantly improve upon the...
Ms
Fay Filmer
(University of Liverpool)
15/09/2011, 15:10
The AGATA (Advanced Gamma Ray Tracking Array) physics campaign commenced in February 2010 and there is an emphasis on effective methodologies for the analysis of in-beam data. In order to realise the AGATA demonstrator a number of commissioning experiments have been performed. Analysis of a commissioning experiment using two AGATA triple clusters coupled to ancillary detectors will be...
Mr
Mike Slee
(University of Liverpool)
15/09/2011, 15:30
By comparing the pulse shapes, using pulse shape analysis (PSA), the interaction positions within a position sensitive HPGe crystal can be accurately located. Compton Image Reconstruction can be used to create an image testing the accuracy of the ability to locate the positions of scatter and absorption events, through PSA. The more accurately the points of interaction are known the better the...
Dr
Alessandro Gabrielli
(Department of Physics, University of Bologna and INFN)
15/09/2011, 16:10
Up to now, the superposition of electron waves has been demonstrated in a variety of arrangements, among which the electron biprism has been the most successful. Nevertheless, the most striking part of the experiment, i.e. the build-up of two-beam interference pattern by the single electrons arriving on the final screen, has been observed only by means of limited statistic samples and never...
Dr
Dima Maneuski
(University of Glasgow)
15/09/2011, 16:30
In this work the results on imaging and spectroscopic performances of 1 mm thick 110x110 and 55x55 um pixellated CdTe detectors bump-bonded to a Timepix single photon counting chip are presented. The performance of the 110x110 um pixel detector was evaluated at the extreme conditions beam-line I15 of the Diamond Light Source. The energy of X-rays was set between 25 and 77 keV. The beam was...
Dr
Jens Weingarten
(Goettingen University)
15/09/2011, 16:50
The upgrade for the ATLAS detector will undergo different phases towards HL-LHC. The first upgrade for the Pixel Detector will consist in the construction of a new pixel layer which will be installed during the first shutdown of the LHC machine (foreseen for 2013-14). The new detector, called Insertable B-Layer (IBL), will be inserted between the existing pixel detector and a new (smaller...
Prof.
Vladimir Peskov
(CERN and UNAM, Mexico)
15/09/2011, 17:10
Nowadays, micropattern gaseous detectors (MPDGs) challenge traditional gaseous detectors (such as MWPCs, RPCs and parallel-plate avalanche chambers) in practically all the applications. The main advantage of the MPGDS is that they are manufactured by means of a microelectronics technology, which offers a high granularity and, consequently an excellent position resolution. However, the fine...
Dr
Christoph Rudolf Von Rohr
(LHEP)
15/09/2011, 17:30
Detectors for High Radiation and Extreme Environments
Oral Presentation
For future neutrino oscillation experiments new large mass scale detectors are needed. One possible type of such detectors could be the liquid Argon Time Projection Chamber (LAr TPC). Therefore, some technical challenges have to be met: purity of the LAr, high voltage supply, calibration etc. To face these challenges, a R&D LAr TPC is now under development at the LHEP of the University of...
Dr
Giovanni Ambrosi
(INFN (Perugia))
16/09/2011, 08:50
The Alpha Magnetic Spectrometer (AMS-02) is a high-energy physics experiment designed to operate in space on board the International Space Station (ISS), where it has been installed on May 16th 2011, taking data continuously since then. Thanks to the very large acceptance (~ 0.5 m2 sr) and an exposure time that will match the ISS lifetime, AMS-02 will measure a wealth of data to study with...
Dr
Jason Gow
(The Open University)
16/09/2011, 09:30
Euclid is a medium class mission candidate for launch in 2017 with a primary goal to study the dark universe using the weak lensing and baryonic acoustic oscillations techniques. Weak lensing depends on accurate shape measurements of distant galaxies. Therefore it is beneficial that the effects of radiation-induced charge transfer inefficiency (CTI) in the Euclid CCDs over the course of the 5...
Mr
Andrew Clarke
(e2v centre for electronic imaging)
16/09/2011, 09:50
The primary aim of ESAs’ Euclid mission is to map the distribution of galaxies and galaxy clusters, with an aim to mapping the ‘dark’ architecture of the universe. This requires a highly accurate CCD, which is also designed to endure a harsh radiation environment.
The e2v CCD204 image sensor was redesigned for use on the Euclid mission; the resulting e2v CCD273 device has, among other...
Dr
Pawel Majewski
(STFC/Rutherford Appleton Laboratory)
16/09/2011, 10:10
The ZEPLIN-III direct dark matter experiment uses a 3D position-sensitive two-phase xenon time projection chamber. It is located in a deep underground laboratory at Boulby in North Yorkshire (UK) and searches for weakly interacting massive particles (WIPMs). Since June 2010 ZEPLIN-III is collecting the data in the second science run. The talk will give an overview over the detector performance...
Petteri Pusa
(University of Liverpool)
16/09/2011, 11:00
The aim of the ALPHA experiment at CERN is to trap cold atomic antihydrogen and study it’s properties, and ultimately, perform a comparison between hydrogen and antihydrogen atomic spectra. Recently, ALPHA has reached important milestones by demonstrating the ability to trap neutral cold antihydrogen and keep the antiatoms confined over a period of 1000 s. [1,2].
The main diagnostic tool...
