Title :
Testbeam results on particle identification with aerogel used as RICH radiator
Author :
Alemi, M. ; Bellunato, T. ; Braem, A. ; Calvi, M. ; Chesi, E. ; Joram, C. ; Liko, D. ; Matteuzzi, C. ; Negri, P. ; Neufeld, N. ; Paganoni, M. ; Seguinot, J. ; Voillat, D. ; Weilhammer, P. ; Ypsilantis, T.
Author_Institution :
Dipartimento di Fisica, Milan Univ., Italy
Abstract :
We present the results obtained by exposing samples of silica aerogel of different thickness and optical properties to pion and proton beams with momenta between 6 and 10 GeV/c in the PS testbeam facility at CERN. Two large diameter pad-HPDs with 2048 channels, produced at CERN, have been used as photon detectors. Separate Cherenkov rings produced by the different particles were reconstructed obtaining pion/proton separation on the whole considered momentum range. The number of photoelectrons was measured as a function of aerogel thickness and was found in agreement with Monte Carlo expectations
Keywords :
Cherenkov counters; Monte Carlo methods; aerogels; meson detection; proton detection; silicon compounds; Monte Carlo expectations; RICH radiator; SiO2; aerogel thickness; optical properties; particle identification; photon detectors; pion/proton separation; silica aerogel; Detectors; Educational institutions; Mesons; Optical refraction; Optical variables control; Particle beams; Silicon compounds; Tagging; Testing; Thickness measurement;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949925
