Gas Cherenkov detectors for high momentum charged particle identification in the ALICE experiment at LHC

✍ Scribed by G. Volpe; D. Di Bari; A. Di Mauro; E. Garcia; P. Martinengo; E. Nappi; V. Peskov; G. Paic; N. Smirnov

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 862 KB
• Volume: 595
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2008.07.043

✦ Synopsis

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 (C 5 F 12 ) 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.