Single-photon detection with THGEM-based counters

Levorato, S. and Alexeev, M. and Birsa, R. and Bradamante, F. and Bressan, A. and Chiosso, M. and Ciliberti, P. and Dalla Torre, S. and Denisov, O. and Duic, V. and Ferrero, A. and Finger, M. and Finger Jr, M. and Fischer, H. and Giorgi, M. and Gregori, M. and Gobbo, B. and Heinsius, F. H. and Herrmann, F. and Königsmann, K. and Lauser, L. and Maggiora, A. and Martin, A. and Menon, G. and Mutter, A. and Nerling, F. and Novakova, K. and Panzieri, D. and Pesaro, G. and Polak, J. and Rocco, E. and Santos, C. and Sbrizzai, G. and Schiavon, P. and Schill, C. and Schopferer, S. and Slunecka, M. and Sozzi, F. and Steiger, L. and Sulc, M. and Takekawa, S. and Tessarotto, F. and Wollny, H. (2011) Single-photon detection with THGEM-based counters. Il nuovo cimento C, 34 (6). pp. 52-56. ISSN 1826-9885

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An R&D project was started to develop a gaseous detector of single UV photons, able to stably operate at high gain and high rate, and to provide good time resolution and insensitivity to magnetic field, as required by the next generation of Ring Imaging Cherenkov Counters. The detector is based on the use of a novel and robust electron multiplier, the THGEM, arranged in a multilayer architecture, where the first layer is coated with a photosensitive CsI film. A systematic study of the response of single layer THGEMs with various geometries and different conditions was performed and several small photon detector prototypes have been built, tested in laboratory and operated in test beam exercises during 2009 and 2010 at the CERN H4 beam line. Evidence for the efficient detection of Cherenkov photons has been obtained, with stable operation in the test beam environment; the typical gain was about 105 and the time resolution was better than 10 ns.

Item Type: Article
Uncontrolled Keywords: Photomultipliers; phototubes and photocathodes ; Imaging detectors and sensors ; Cherenkov detectors
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 10 Apr 2020 14:36
Last Modified: 10 Apr 2020 14:36

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