2-7 May 2010
Oustau Calendal Conference Center
Europe/Paris timezone
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R&D on CsI-TGEM based photodetector

5 May 2010, 09:00
25m
Oustau Calendal Conference Center

Oustau Calendal Conference Center

Cassis, France
Oral presentation Photon detection for Cherenkov counters Photon detection for Cherenkov Counters - gaseous devices

Speaker

Dr Vladimir Peskov (CERN, Geneva (Switzerland) and UNAM Mexico)

Description

R&D on CsI-TGEM based photodetector V. Peskov for the ALICE collaboration The Very High Momentum PID (VHMPID) detector proposed for the ALICE upgrade is a focusing RICH using C4F10 gaseous radiator. For the detection of Cherenkov photons, one of the options currently under investigation is to use a CsI coated Triple-Thick-GEM (CsI-TTGEM). Extensive laboratory studies have been carried out to fully characterize this detector, showing a gain larger than 105 in Ne+10%CH4 and a quantum efficiency of 30% at 170 nm. We will present results from the laboratory studies and also first results of beam tests of a RICH detector consisting of a CaF2 radiator coupled to CsI-TTGEM equipped with a 10x10cm2 pad readout plane and GASSIPLEX-based front-end electronics. With such a prototype the detection of Cherenkov photons has been achieved for the first time, and simultaneously to MIPs, in a stable operation mode.
Please indicate "poster" or "plenary" session. Final decision will be made by session coordinators. plenary

Primary author

Dr Vladimir Peskov (CERN, Geneva (Switzerland) and UNAM Mexico)

Presentation Materials

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