TY - JOUR
T1 - Light sensors selection for the cherenkov telescope array
T2 - PMT and SiPM
AU - Shayduk, M.
AU - Mirzoyan, R.
AU - Kurz, M.
AU - Knötig, M.
AU - Bolmont, J.
AU - Dickinson, H.
AU - Lorenz, E.
AU - Tavernet, J. P.
AU - Hose, J.
AU - Teshima, M.
AU - Vincent, P.
PY - 2012/12/11
Y1 - 2012/12/11
N2 - The Cherenkov Telescope Array (CTA) is planned as the next generation ground-based instrument (after VERITAS, H.E.S.S. and MAGIC) for astrophysics by means of very high energy γ-rays. The CTA collaboration includes the MAGIC, the H.E.S.S. and the VERITAS collaborations. Also, a large number of astrophysicists from European institutions, from Japan and USA have joined the CTA. The CTA array will comprise about 100 imaging telescopes of three sizes that shall provide one order of magnitude higher sensitivity than the current generation of telescopes. Every telescope will use an imaging camera based on ∼2000PMTs. We have set up a PMT development program with Hamamatsu (Japan) and Electron Tube Enterprises (England) aiming to produce 1.5 in. PMTs of optimized parameters for the CTA project. The entire scientific community, including the medicine and biology, as well as many industrial applications, where a low light level sensors are necessary, may profit from it. Together with PMTs also SiPMs are interesting sensor candidates for the CTA telescopes. One expects about two times higher photon detection efficiency for SiPM compared to PMT. A set of parameters like the photon detection efficiency, cross-talk, afterpulsing, dark rate together with other important factors were evaluated. Here we report on the progress of these developments, based on detailed measurements.
AB - The Cherenkov Telescope Array (CTA) is planned as the next generation ground-based instrument (after VERITAS, H.E.S.S. and MAGIC) for astrophysics by means of very high energy γ-rays. The CTA collaboration includes the MAGIC, the H.E.S.S. and the VERITAS collaborations. Also, a large number of astrophysicists from European institutions, from Japan and USA have joined the CTA. The CTA array will comprise about 100 imaging telescopes of three sizes that shall provide one order of magnitude higher sensitivity than the current generation of telescopes. Every telescope will use an imaging camera based on ∼2000PMTs. We have set up a PMT development program with Hamamatsu (Japan) and Electron Tube Enterprises (England) aiming to produce 1.5 in. PMTs of optimized parameters for the CTA project. The entire scientific community, including the medicine and biology, as well as many industrial applications, where a low light level sensors are necessary, may profit from it. Together with PMTs also SiPMs are interesting sensor candidates for the CTA telescopes. One expects about two times higher photon detection efficiency for SiPM compared to PMT. A set of parameters like the photon detection efficiency, cross-talk, afterpulsing, dark rate together with other important factors were evaluated. Here we report on the progress of these developments, based on detailed measurements.
KW - CTA consortium
KW - G-APD
KW - High quantum efficiency
KW - Imaging atmospheric Cherenkov telescope
KW - MPPC
KW - PMT
KW - Photodetector
KW - Photomultiplier
KW - Photosensor
KW - SiPM
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U2 - 10.1016/j.nima.2011.12.010
DO - 10.1016/j.nima.2011.12.010
M3 - Article
AN - SCOPUS:84867892721
SN - 0168-9002
VL - 695
SP - 109
EP - 112
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -