Protons identification up to 10 GeV/c and more is a challenge. We present here an exhaustive study of the possibilities offered by a combination of a gaseous radiator having low index of refraction (C5F12) with the proven concept of large area CsI photocathodes, instrumenting either a multiwire chamber or a GEM detector. We present two geometries. One of them is proximity-focusing, nevertheless allows identification in a large momentum range. The second one deals with a focusing geometry with a spherical mirror. Simulations of the performance of both types are presented. (C) 2008 Elsevier B.V. All rights reserved.
Gas Cherenkov detectors for high momentum charged particle identification in the ALICE experiment at LHC
VOLPE, GIACOMO;DI BARI, Domenico;
2008-01-01
Abstract
Protons identification up to 10 GeV/c and more is a challenge. We present here an exhaustive study of the possibilities offered by a combination of a gaseous radiator having low index of refraction (C5F12) with the proven concept of large area CsI photocathodes, instrumenting either a multiwire chamber or a GEM detector. We present two geometries. One of them is proximity-focusing, nevertheless allows identification in a large momentum range. The second one deals with a focusing geometry with a spherical mirror. Simulations of the performance of both types are presented. (C) 2008 Elsevier B.V. All rights reserved.File in questo prodotto:
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