Dr
Fabien Cavalier
(LAL)
, Prof.
Toru Takeshita
(Shinshu University (JP))
,
Véronique Puill
6/13/12, 10:00 AM
Dr
Gianmaria Collazuol
(Dipartimento di Fisica e Astronomia, Universita' di Padova, Italy)
6/13/12, 10:30 AM
Oral presentation
The physics of the device, the main technological issues and the related solutions adopted by the various manufacturers together with the most recent advances and open issues will be discussed.
The device working principles will be covered in detail, by focusing on the phenomena related to avalanches development and to carrier generation and transport in silicon, which are relevant to...
Mr
A. Kobayashi
(Shinshu)
6/13/12, 11:15 AM
Oral presentation
We present the results of measurements of the timing resolution of MPPCs for several pixel sizes. By using LED light, we have measured time jitter of pulses which exceed the threshold voltage. The number of photons illuminated on the MPPCs are from 10 to 10000 , while the timing resolution stays more or less constant. There are several types of MPPPC which have different number of pixels in...
Dr
Fabrice Retiere
(TRIUMF)
6/13/12, 11:35 AM
Oral presentation
Hamamatsu Photonics Multi-Pixel Photon Counters (MPPCs) achieve high photodetection efficiency with relativelity low dark noise. The MPPC gain is comparable to Photomultipliers but but the pixel avalanches tend to trigger others either in neighboring pixels (crosstalk) or in the same pixel at a latter time (after-pulsing). Cross-talk and after-pulsing avalanches are one of the main limitation...
Patrick Eckert
6/13/12, 11:55 AM
Oral presentation
In this talk a generic framework for the simulation of the response of Silicon Photomultipliers (SiPMs) is presented. The framework allows a custom definition of the SiPM parameters and geometry and provides a detailed model of the SiPM response. The simulation generates the signal charge and pulse shape for arbitrary incident light pulse distributions and the specified SiPM properties which...
Dr
Gabriela Llosa
(IFIC-Valencia)
6/13/12, 12:15 PM
Poster
Silicon Photomultipliers (SiPMs) offer an alternative to PMTs that allow the implementation of innovative detector types. Continuous scintillator crystals coupled to SiPM arrays provide higher efficiency than pixellated crystals. We are applying this approach in two different medical imaging fields with successful results.
The use of SiPM arrays makes it possible stacking several detector...
Florian Schneider
(TU München Klinikum rechts der Isar Nuklearmedizin)
6/13/12, 12:15 PM
Poster
SiPMs are nowadays available from varying manufacturers. The investigated device was the latest KETEK PM3350. Its peak sensitivity is for blue light, it has an active area of 3 x 3 mm² with 50 µm cell size and operates in a large bias region from 24 - 32 V. The active area is covered with an epoxy layer and the package is kept at the smallest possible size of 3.9 x 4.4 x 2.0 mm³
We...
21.
Development of a Four-Layer Depth of Interaction Detector Based on a 6 x 6 SiPM Array for MR-PET
Dr
Tomoaki Tsuda
(Shimadzu Corporation)
6/13/12, 12:15 PM
Poster
We are developing a PET scanner which has both depth-of-interaction (DOI) and time-of-flight (TOF) information and can be placed close to a MRI scanner. Here we evaluated the positioning and energy performances of a four-layer DOI detector which consists of a single-layer of a 16 x 16 Lu2(1-x)Gd2xSiO5 (LGSO) crystal array, a light guide, and a 6 x 6 SiPM (MPPC: S10985-050C, Hamamatsu...
Mr
Nicolas HUDIN
(Laboratoire IMNC)
6/13/12, 12:15 PM
Poster
Intraoperative localization of malignant tissues labeled with positron radiotracers opens up new prospects to improve the efficiency of cancer surgery. Because Silicon Photomultipliers (SiPM) introduced a breakthrough for the development of miniaturized imaging devices, we are currently designing two intraoperative beta probes based on this technology: a light imaging device with a small field...
Elmaddin Guliyev
(Ecole Polytechnique)
,
Farid Ahmadov
(Joint Institute for Nuclear Research)
6/13/12, 12:15 PM
Poster
This article describes performance of a new generation of the Micro-Pixel Avalanche Photodiode (MAPD). MAPD has the especially advances: gain can reach values of 105, photon detection efficiency is 30-35 % in a wide wavelength range and pixels density is 15000 pixels/mm2. Results of gamma-ray detecting measurements performed using LFS scintillating crystal by MAPD are also presented. Energy...
Dr
Alexey Stoykov
(Paul Scherrer Institut)
6/13/12, 12:15 PM
Poster
We have recently published [1] a time resolution study with a plastic scintillator read out by a~Geiger-mode Avalanche Photodiode. Time resolution of sigma = 18/(E^0.5) ps*MeV^0.5 was measured. The work presented here aims to simulate that experiment using the Geant4 toolkit, and to identify the parameters which have the largest effect on the total time resolution. We also compare different...
Yasuhiro Nishimura
(University of Tokyo)
6/13/12, 12:15 PM
Poster
Hyper-Kamiokande is a huge Cherenkov neutrino detector with water of 1 million metric tons planned for the near future in Japan. Several Photo-Detector (PD) candidates are being newly developed. At first, an 8-inch Hybrid-PD with an avalanche diode will be tested in a 200-ton water Cherenkov detector loaded with Gadolinium. We report the plan and status, as well as the basic performance...
Mr
Max Knötig
(Max Planck Institute for Astrophysics)
6/13/12, 12:15 PM
Poster
Visible light emission from both photomultipliers (PMT) and semiconductor p-n junctions in reverse bias has been known for over half a century. As photomultipliers and silicon photomultipliers (SiPM) are sensitive, their own light emission has a feedback, which needs to be understood. Furthermore it can be used to develop new evaluation tools.
With light emission microscopy we can show that...
Mr
Taibi AIT IMANDO
(Laboratoire de l'Accélérateur Linéaire)
6/13/12, 12:15 PM
Poster
This work presents a miniaturized photo-detection system based on a new semiconductor photon-detector namely SiPM and a special read-out electronics build around a dedicated ASIC.
The used SiPM arrays have important advantages compared to classical photomultipliers tubes (compactness, good sensitivity, low bias voltage) and the ASIC’s read-out electronics developed at LAL offers...
Dr
Khalil JRADI
(LE2I/CNRS)
6/13/12, 12:15 PM
Poster
The domain of Geiger-APD has reached an advanced development in the last years. The idea of this work is to use the spatial resolution and rapidity of the Geiger-APD in the field of very low light intensities; it would be possible to explore new areas. The equipment that we intend to achieve will be a series of Geiger-APD arrays (imagers) based on the principle detector unit.
Prof.
shulin Liu
(Institute of High Energy Physics)
6/13/12, 12:15 PM
Poster
According to definition of noise factor of microchannel plate and test basic principle, we established test installation , and measured numerical values of MCPs which made of different material and channel pore include no / with ion barrier film in input of MCP. At the same time, we tested and analyzed relation between noise factor and MCP voltage, combined relation between signal-to-noise...
Dr
Josef Blazej
(Czech Technical University in Prague)
6/13/12, 12:15 PM
Poster
We are presenting a set of measurement to determination of the optical to electrical delay of the photon counting detector. The absolute value of the time interval between the time of arrival of the signal photon onto the detector input aperture and the time when the electrical output signal is exceeding the predefined level have to be determined. Also results showing a temporal relation...
Dr
Angela Papa
(Paul Scherrer Institut)
6/13/12, 12:15 PM
Poster
High position and timing resolutions can be simultaneously achieved today using scintillation material coupled with SiPM.
An active target for the MEG experiment based on very thin scintillating fibers readout by SiPMs operating in a high magnetic field (1.3 T) is considered. The tool should provide a very precise measurement of the muon decay vertex and its timing, with a consequently...
Dr
Amur Margaryan
(Alikhanyan National Science Laboratory)
6/13/12, 12:15 PM
Poster
Principles of a time tagged time resolved single photon THz counting system, based on the GHz radio frequency photomultiplier tube, RFPMT, is proposed. The time resolution and minimal time bin of the technique is about picosecond. Prompt rate of the technique with dedicated spiral scanning system can reach THz in a time period of about 100 ns, while average rate is about 1 MHz. The detection...
Elmaddin Guliyev
(Ecole Polytechnique)
6/13/12, 12:15 PM
Poster
In this work the status of developed readout chain of prototype Electromagnetic Calorimeter for future Linear Collider experiment is presented.
The prototype of Electromagnetic Calorimeter developed base on silicon
as a detector and tungsten as a absorber. For the fine granularity of the
calorimeter, pixel size of 0.5x0.5 cm2 silicon diode is optimized. There is a 36 channel, dual gain, low...
Katsushige Kotera
(Shinshu University)
6/13/12, 12:15 PM
Poster
The CALICE collaboration is developing a granular electromagnetic calorimeter using (5-10) x 45 x 3 mm^3 plastic scintillator strips for a future linear collider experiment. A prototype module has been constructed and tested at Fermilab in 2008 and 2009. It has 2160 scintillator strips and each of them is read out by using a Pixelated Photon Detector (PPD). The experiment in 2009 was held in...
Mr
Yuya Akazawa
(Tohoku University ,Japan)
6/13/12, 12:15 PM
Poster
We are deveroping a calorimeter to detect the scattering proton
and measure its energy.
The calorimeter consists of BGO or LFS crystal and MPPC-array.
We will report the parformance of this calorimeter.
Prof.
Francesco Riggi
(Dept. of Physics and Astronomy and INFN, Catania)
6/13/12, 12:15 PM
Poster
Positron Emission Tomography (PET) is a medical imaging technique able to observe functional processes in vivo. It is based on the simultaneous back-to-back emission of the two 511 keV photons following positron annihilation by a chemical tracer doped with appropriate radioisotopes. The possibility to use high timing resolution detectors allows to localize the emission source with higher...
Dr
Rosaria Grasso
(INFN-LNS)
, Prof.
Salvatore Tudisco
(INFN-LNS)
6/13/12, 12:15 PM
Poster
Time resolved imaging up to the single photon sensitivity is one of the most ambitious and important goals of photonics. Currently there are no commercial devices able to provide both the information on position (imaging) and arrival time of photons emitted by weak and ultra-weak source. Only very expensive sensors (ICCD) are able to reach the single photon threshold with the possibility to...
Sergei Dolinsky
(GE Global Research Center)
6/13/12, 2:00 PM
Oral presentation
SiPMs have a very good single photoelectron pulse (SPE) response which can be used for absolute calibration of them and defining breakdown voltage. Unfortunately with increasing size of SiPM it becomes more difficult to measure the SPE pulse due to pile up from the increased dark counts. Also this SPE calibration method requires high gain low noise amplifier, which makes it impossible to use...
Christian Jendrysik
(Max-Planck-Institute for Physics)
6/13/12, 2:20 PM
Oral presentation
A Silicon Photomultiplier (SiPM) is a novel type of photon-counting device. Due to ongoing developments in SiPM technology, it becomes promising candidate to replace conventional photomultiplier tube in a multitude of applications. The Geiger-mode operation of SiPMs requires a high ohmic quench resistor which is realized in conventional devices by surface growth of a polysilicon layer. This,...
Koji YOSHIMURA
(High Energy Accelerator Research Organization (KEK))
6/13/12, 2:40 PM
Oral presentation
Measurement of PPD (Pixelated Photon Detector) characteristics with various wavelengths is important for understanding and improvement of the sensor performances. We have developed a new pulsed laser microscope system whose wavelength is continuously tunable from 410 nm to 2200 nm by using OPO laser system. Laser spot can be focused to ~2 um, small enough to measure pixel-by-pixel performance...
Dr
Ichiro Adachi
(KEK)
6/13/12, 4:00 PM
Oral presentation
New hybrid avalanche photo-detector has been developed as a photon sensor for the Belle II RICH counter.
Single-photon response was investigated in the presence of a magnetic field and excellent performance was demonstrated. In addition, the radiation damage was studied in detail.
By building a prototype consisting of 6 photo-detectors, a test beam experiment was carried out. We...
Mr
Yuji Yoshizawa
(Hamamatsu Photonics)
6/13/12, 4:20 PM
Oral presentation
Hamamatsu Photonics has developed 12-inch large size PMT for Neutrino physics experiments and 3-inch metal bulb PMT for Dark Matter experiments. These PMTs and other new products will be shown in this presentation.
Dr
Emanuele Leonora
(INFN section of Catania)
6/13/12, 4:40 PM
Oral presentation
Photomultipliers with large photocathode area have been widely used in proton decay, astrophysics and neutrino detectors in recent years, since large detection volumes can be reached with a reduced number of detectors. The sensitivity of a photomultiplier is described in terms of its quantum efficiency (QE), i.e. the number of photoelectrons emitted from the photocathode divided by the number...
Alexander Wolfgang Britting
(Friedrich-Alexander-Univ. Erlangen (DE))
6/13/12, 5:00 PM
Oral presentation
The PANDA experiment at FAIR will study ppbar-collisions at an energy range of 1 GeV to 15 GeV. The particle identification will be done with two DIRC (detection of internally reflected Cherenkov light) detector systems. Attractive photo sensors for these DIRCs are micro-channel plate (MCP) photomultipliers (PMT), which provide an excellent time resolution of <50 ps and can stand high...
Yuekun Heng
(Institute of High Energy Physics)
6/13/12, 5:20 PM
Oral presentation
A new design of large area MCP-PMT for the next generation neutrino experiments is proposed. The main motivation of the design is to improve the quantum efficiency (photo detection efficiency) of the PMT. Two sets of small MCP units, the transmission photocathode coated on the front hemisphere and the reflection photocathode coated on the rear hemisphere are assembled in the same glass...
Dr
Gabriela Llosa
(IFIC-Valencia)
6/14/12, 9:00 AM
Oral presentation
Multicell Geiger-mode avalanche photodiodes or silicon photomultipliers (SiPMs) have proven to be a sound alternative to other types of photodetectors in different fields, and their advantages can significantly overcome the performance previously achieved or enable new possibilities. Their development continues with the improvement of general properties, and/or the enhancement of determined...
Dr
Dennis Schaart
(Delft University of Technology)
6/14/12, 9:45 AM
Oral presentation
Silicon photomultipliers (SiPMs) have recently been shown to enable better timing resolution than photomultiplier tubes (PMTs) when used as light sensors in scintillation detectors. This makes them interesting for use in time-of-flight (TOF) positron emission tomography (PET). Additional features for this application are their compactness and magnetic field compatibility, enabling...
Matthieu Heller
(CERN)
6/14/12, 10:05 AM
Oral presentation
The AX-PET (AXial Positron Emission Tomography) experiment proposes a novel geometrical approach for a PET scanner, in which long LYSO scintillator crystals are placed axially in the tomograph. Arrays of WLS strips, placed behind each layer of crystals, provide the measurement of the axial coordinate. Both the crystals and the WLS strips are individually read out by G-APDs (Geiger-mode...
Stefan Gundacker
(Vienna University of Technology (AT))
6/14/12, 11:00 AM
Oral presentation
Silicon photomultipliers (SiPM) have a wide range of applications in high energy and medical detector physics. Their excellent timing properties and compactness make them particularly interesting for time of flight positron emission tomography (TOF-PET). This study aims at determining the optimum detector conditions for highest time resolution in a TOF-PET system. The measurements are based on...
Mr
Mikhail Barnyakov
(Budker Institute of Nuclear Physics)
6/14/12, 11:20 AM
Oral presentation
The FARICH ('Focusing' Aerogel RICH) system is suggested for particle identification at Super Charm-Tau Factory project currently being developed at Budker Institute of Nuclear Physics (Novosibirsk, Russia). The only candidate for the photon detectors of the FARICH are SiPMs. The FARICH prototype was tested with 1 GeV electrons on the test beam line at VEPP-4M collider. Multilayer focusing...
Prof.
Hiroki Kanda
(Tohoku University)
6/14/12, 11:40 AM
Oral presentation
We have been developing an array of electron counters for the photon tagging spectrometer at the Research Center for Electron Photon Science, Tohoku University (ELPH). Since it is installed in the limited space of the bending magnet of the accelerator, compact size and insensitivity to the magnetic field are required.
We chose the multi-pixel photon counter (MPPC) HAMAMATSU S10362-33-100C as...
Kim-Eigard Hines
(University of Oslo)
6/14/12, 12:00 PM
Oral presentation
COMPET is aiming for high-resolution with a high
sensitivity by the use of a novel detector geometry. In classical
PET detectors where detector elements are mounted radially the
number of photo detectors to be read out scales with the square
of the detector resolution. The lack of depth of interaction information
contributes to a position dependent parallax error. The
COMPET detector...
Thomas Krähenbühl
(ETH Zurich)
6/14/12, 12:20 PM
Oral presentation
The application of Geiger-mode multi pixel photon devices in the field of ground-based Cherenkov astronomy is currently being evaluated in the FACT (First G-APD Cherenkov Telescope) project. The FACT collaboration built a camera with 1440 pixels for the use in Imaging Atmospheric Cherenkov Telescopes, each pixel consisting of a Hamamatsu MPPC with a solid light collecting cone glued to it. The...
Dr
Florian Wiest
(KETEK GmbH)
6/14/12, 2:30 PM
Oral presentation
Geiger-mode multi-pixel photon detectors are evaluated and discussed since a few years to replace the traditional photomultiplier tubes in several applications due to their potential high photon detection efficiency, miniaturized device size, insensitivity to high magnetic field and their prospectively low production costs.
To leverage this device for industrial applications the manufactures...
Dr
O'Neill Kevin
(SensL Technologies Ltd)
6/14/12, 2:50 PM
Oral presentation
In this paper we report on a new silicon photomultiplier (SPM) architecture with additional signal output for a timing measurement. This additional output has very fast single photo electron response (about 2 ns FMTM). This new device can be easily integrated into legacy systems by providing the ability to operate as a normal SPM with Anode readout or in new designs with an additional fast...
Ivan Alexandrov
(I)
6/14/12, 3:10 PM
Oral presentation
A concept of readout of noble gas two-phase emission detectors by means of multipixel avalanche Geiger photodiodes (MGPDs or SiPMs) and a THGEM structure is presented.
It is well known that a two-phase emission technique with noble gases is a very sensitive method of detection of very small ionisation signals (down to few or single ionisation electrons). Electroluminescent “amplification”...
Margherita Tenconi
(Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CNRS and Université Paris-Sud, F-91405 Orsay, France)
6/14/12, 3:30 PM
Poster
Bolometric light detectors provide an efficient method to collect light signals at small thresholds in cryogenic experiments and are being exploited in next-generation experiences for the search of Neutrinoless Double Beta Decay. Sample light detecting bolometers made up of a ultra-pure Ge slab read by a phonon sensor thermistor were assembled and tested at very low temperatures, below 30 mK;...
Claudio Gotti
(Universita e INFN (IT))
6/14/12, 3:30 PM
Poster
The RICH upgrade in LHCb requires a new front-end electronics for the detector readouts at the LHC frequency of 40 MHz. In particular the photon detector currently used in the RICH features an embedded front-end elctronics inside the tube. This calls for a replacement of readout electronics that involves the alteration of the whole HPD. On the other hand, the Milano-Bicocca group chose to...
Dr
Johannes Breuer
(Siemens)
6/14/12, 3:30 PM
Poster
A detailed model for a Monte-Carlo simulation of the response of Silicon Photomultipliers (SiPMs) is presented. Comparisons with experimental data show a good agreement. The model allows investigating which SiPM-specific features affect energy and time resolution. Furthermore, the simulation is an important tool for the optimization of a detector layout and the design of read-out schemes.
Stefano Levorato
(INFN Trieste)
6/14/12, 3:30 PM
Poster
Architectures based on multiple layers of THick-Gas Electron Multipliers (THGEM) represent a possible answer to the quest for novel gaseous counters with single photon detection capability able to overcome all the limitations of the present generation of gaseous photon detectors.
A systematic R&D programme has been performed to achieve a deep understanding of the THGEM characteristics and to...
Thomas Conneely
(University of Leicester)
6/14/12, 3:30 PM
Poster
We present results from a photon-counting microchannel plate (MCP) imaging detector using the Capacitive Division Image Readout (C-DIR), designed to provide moderate position resolution (of the order of 100x100 pixels^2), with timing resolution of 25 ps and a maximum event rate of 10 MHz, limited by microchannel plate count rate saturation. The NINO and HPTDC ASIC combination, developed at...
Dr
Elena Popova
(MEPhI)
6/14/12, 3:30 PM
Poster
The TUNKA EAS Cherenkov experiment operates in the Tunka Valley in Siberia. The main physics goals of the experiment are measurements of energy spectrum and mass composition of primary cosmic rays in the energy region of 10^15-10^18 eV and detection of high energy gamma-rays from supernova remnants with energy threshold of 20-50TeV. New 8" hemispherical PMTs from Hamamatsu and ET have been...
Dr
Luigi Cosentino
(LNS - INFN)
6/14/12, 3:30 PM
Poster
In our measurements at LNS-INFN we proved that by coupling two Silicon Photomultipliers on both the sides of a LYSO scintillator finger, with suitable surfaces treatment, allow to achieve optimal performances in terms of time and spatial resolution, thus strongly supporting the feasibility of a high resolution TOF-PET probe. With a detector element of 1.5mm x 1.5mm x 10mm, we have achieved...
Ms
Paola Avella
(University of Surrey)
6/14/12, 3:30 PM
Poster
A variety of modern physics applications, ranging from medical to high energy physics, require very fast light sensors, characterised by a response in the range of tens of picoseconds. Silicon Photomultipliers (SiPMs, or Multi pixel photon counters (MPPCs)) are a relatively new solid-state pixellated detector type that satisfies this requirement, with the advantage of being compact, cheap,...
Mr
Lukas Gruber
(Stefan Meyer Institute for Subatomic Physics, Austrian Academy of Sciences, Vienna, Austria)
6/14/12, 3:30 PM
Poster
The Silicon Photomultiplier (SiPM) is an extremely versatile photo detector which can be used in various fields ranging from astrophysics, particle and nuclear physics to medical imaging. One of the important parameters of a photo sensor is the performance in high rate environments. In order to characterize the rate capability and the double hit resolution of SiPMs, we performed an...
Mr
Vincent Chaumat
(In2p3 LAL)
, Dr
Véronique Puill
(In2p3 LAL)
6/14/12, 3:30 PM
Poster
The absolute measurement of the Photo Detection Efficiency (PDE) of a SiPM over the whole visible range using continuous light is not a straightforward task as it requires the accurate determination of the detector gain. The SiPM gain given by the producer does not take into account all the secondary effects (cross-talks, after-pulses events), which leads to an overestimation of the PDE.
To...
Georgios Bourlis
(Hellenic Open University)
6/14/12, 3:30 PM
Poster
KM3NeT (km3 Neutrino Telescope) is planned to be a deep-sea multidisciplinary observatory in the Mediterranean Sea that will provide innovative science opportunities spanning Astroparticle Physics and Earth and Sea Science. KM3NeT will consist of several hundreds of vertical structures, which carry photo-sensors and devices for calibration and environmental measurements. The photo-sensor unit...
Dr
Anatoly Ronzhin
(FNAL)
6/14/12, 3:30 PM
Poster
A short report of our Fermilab activity with SiPms timing.
Andrey Sokolov
(Budker Institute of Nuclear Physics)
6/14/12, 3:30 PM
Poster
We compare the performances of different types of Geiger-mode APDs (GAPDs or SiPMs), manufactured by CPTA company, at cryogenic temperature, namely at 87 K. Noise rate, gain characteristics and signal shapes were measured, both at room and cryogenic temperature. Four types of GAPDs were investigated, having an active area of 1x1, 2.1x2.1, 2.5x2.5, and 3x3 mm2. The best performance showed the...
Mr
Mikhail Barnyakov
(Budker Institute of Nuclear Physics)
6/14/12, 3:30 PM
Poster
Photomultiplier tubes (PMT) based on microchannel plates (MCP) found a number of applications in colliding beam experiments at Budker Institute of Nuclear Physics (Novosibirsk, Russia). We report on the degradation of MCP PMT main characteristics after 8 years of operation in the threshold Cherenkov ASHIPH counters of the KEDR experiment at e+e- collider VEPP-4M.
The photocathode aging in MCP...
Prof.
Peter Hobson
(Brunel University (GB))
6/14/12, 3:30 PM
Poster
Vacuum Phototriodes (VPTs) are radiation resistant photodetectors, designed to operate in a strong quasi-axial magnetic field. This paper reports the long and short term changes in response of production vacuum phototriodes to pulsed light for devices installed in the CMS experiment at the CERN LHC. Both long and short term dynamic effects occur because of pulse rate changes during LHC...
Mr
Gautier Vojetta
(CEA/Leti)
6/14/12, 4:10 PM
Oral presentation
HgCdTe APDs have been shown to exhibit single carrier multiplication (SCM) which gives desirable properties such as low multiplication excess noise (F<1.2) and gain independent response time up to multiplication gains exceeding 1000. Combined with quantum efficiencies (QE) which can approach 100 % in optimized detectors, theses detectors have the highest information conservation ratio QE/F of...
Dr
Emiliano Olivieri
(CNRS)
6/14/12, 4:30 PM
Oral presentation
Rare event physics like Direct Dark Matter and Neutrino-less Double Beta Decay detection strongly benefit of event-by-event discrimination capabilities. Composite Heat and Light bolometric detectors have shown excellent performance of environmental gamma's, beta's and alpha's tagging and rejection and therefore are widely used in such physics.
The rejection capabilities mainly rely on the...
christophe de La Taille
(CNRS LAL Orsay)
6/15/12, 9:00 AM
Oral presentation
Solid-state photomultipliers (SiPM/MPPC) are increasingly popular and replacing vacuum-based devices in many applications. Although their signal properties (gain, capacitance...) are similar and can thus be readout with the same electronics, several dedicated ASICs have been developed worldwide to take benefit of the high level integration that can be reached with these devices. Furthermore,...
Mr
Eric Oberla
(University of Chicago)
6/15/12, 9:45 AM
Oral presentation
A data acquisition (DAQ) system using 10-15 Gigasamples/second (Gsa/s) waveform sampling ASICs for the readout of large active-area micro-channel plate photomultiplier tubes (MCP-PMTs) is presented.
Currently being developed by the Large-Area Picosecond Photo-Detector (LAPPD) collaboration, a single MCP photo-detector `tile' has an active area of 400 sq. cm and a dual-end, 50-ohm transmission...
Dominique Robert Breton
(Universite de Paris-Sud 11 (FR))
6/15/12, 10:05 AM
Oral presentation
The recent progresses in the field of photo-detection have pushed the performances of the detectors toward the picosecond scale. Currently existing electronics dedicated to precise charge and time measurement is mainly based on the use of high-end oscilloscopes. Numerous test benches are also based on both Charge-to-Amplitude Converters and Constant Fraction Discriminators (CFD) associated...
Selma Conforti Di Lorenzo
(OMEGA/LAL/IN2P3/CNRS)
6/15/12, 11:10 AM
Oral presentation
The OMEGA group has designed a new generation of ASICs, the “ROC” family, in AMS (AustriamMicroSystem) SiGe 0.35 µm technology to read out signals from various families of photo-detectors. The chip named MAROC (standing for Multi Anode ReadOut Chip) is dedicated to the readout Multi Anode Photomultipliers (MAPMT), PARISROC(standing for Photomultiplier ARray In SiGe ReadOut Chip) to read out...
Christopher Naumann
(CNRS / IN2P3)
6/15/12, 11:30 AM
Oral presentation
The international CTA consortium is currently in the preparatory phase for the development of the next-generation Cherenkov Telescope Array (CTA), based on the return of experience from the three major current-generation arrays H.E.S.S., MAGIC and VERITAS. To achieve an unprecedented sensitivity and energy range for TeV gamma rays, a new kind of flexible and powerful yet inexpensive front-end...
Ryotaro Honda
(Tohoku University)
6/15/12, 11:50 AM
Oral presentation
We are developing an electronics to readout many PPDs for J-PARC (Japan Proton Acclerator Research Complex) E40 in Japan. In the E40 experiment, differential cross section of hyperon-proton scattering will be measured by using a liquid hydrogen target and high intensity pion beam (up to 10 MHz) in the K1.8 beamline. Two different types of new detectors, consisted of scintillation fibers and...
Herve Marie Xavier Grabas
(CEA - Centre d'Etudes de Saclay (FR))
6/15/12, 12:10 PM
Oral presentation
We describe an inexpensive micro-strip RF anode designed to measure
the time and position in large-area MCP-based photo-detectors. The
anode has been optimized to match the bandwidth of the intrinsically
fast MCPs (risetime < 1ns). The timing, two-dimensional position, and
energy of the MCP pulses are extracted by fast waveform digitization
at both ends of the anode micro-strips. The...
Francisco Neves
(LIP-Coimbra)
6/15/12, 2:00 PM
Oral presentation
Liquid xenon is an excellent scintillator with large atomic number, relatively high density, high light yield and short decay time which makes it suitable for a number of applications in particle physics, astrophysics and nuclear medicine. In particular, large liquid xenon detectors are being used in several dark matter experiments. While in most cases the optical readout is done with...
Dr
Elena Popova
(Mephi)
6/15/12, 2:20 PM
Oral presentation
The results of evaluation studies of high UV sensitive SiPMs produced by MEPhI/MPI operating in liquid argon. The SiPMs have PDE>50% in the wavelegth region of 350-400 nm. SiPMs were coupled with different types of WLS foils to reach high sensitivity to LAr scintillation light. The main parameters of SiPMs (PDE, noise, cross-talks, afterpulses, stability) in LAr have been thoroughly studied.
Wataru Ootani
(ICEPP, University of Tokyo)
6/15/12, 2:40 PM
Oral presentation
We are developing Pixelated Photon Detector (PPD) sensitive to deep UV scintillation photons of liquid xenon. Liquid xenon scintillation photons are successfully detected by the first prototypes of the PPD. The performance of the PPD measured in liquid xenon will be presented.
Dr
Yuri Musienko
(Fermi National Accelerator Lab. (US)/INR(Moscow))
6/15/12, 4:00 PM
