THGEM based photon detector for Cherenkov imaging applications

We are developing a single photon detector for Cherenkov imaging counters. This detector is based on the use of THGEM electron multipliers in a multilayer design. The major goals of our project are ion feedback suppression down to a few per cent, large gain, fast response, insensitivity to magnetic...

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Detalles Bibliográficos
Autores principales: Alexeev, M, Birsa, R, Bradamante, F, Bressan, A, Chiosso, M, Ciliberti, P, Croci, G, Colantoni, M L, Dalla Torre, S, Duarte Pinto, S, Denisov, O, Diaz, V, Ferrero, A, Finger, M, Finger, M Jr, Fischer, H, Giacomini, G, Giorgi, M, Gobbo, B, Heinsius, F H, Herrmann, F, Jahodova, V, Königsmann, K, Lauser, L, Levorato, S, Maggiora, A, Martin, A, Menon, G, Nerling, F, Panzieri, D, Pesaro, G, Polak, J, Rocco, E, Ropelewski, L, Sauli, F, Sbrizzai, G, Schiavon, P, Schill, C, Schopferer, S, Slunecka, M, Sozzi, F, Steiger, L, Sulc, M, Takekawa, S, Tessarotto, F, Wollny, H
Lenguaje:eng
Publicado: 2010
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2009.08.087
http://cds.cern.ch/record/1290348
Descripción
Sumario:We are developing a single photon detector for Cherenkov imaging counters. This detector is based on the use of THGEM electron multipliers in a multilayer design. The major goals of our project are ion feedback suppression down to a few per cent, large gain, fast response, insensitivity to magnetic fields, and a large detector size. We report about the project status and perspectives. In particular, we present a systematic study of the THGEM response as a function of geometrical parameters, production techniques and the gas mixture composition. The first figures obtained from measuring the response of a CsI coated THGEM to single photons are presented.

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