Performance of large area CsI-RICH prototypes for ALICE at LHC

Citation
A. Di Mauro et al., Performance of large area CsI-RICH prototypes for ALICE at LHC, NUCL INST A, 433(1-2), 1999, pp. 190-200
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
0168-9002 → ACNP
Volume
433
Issue
1-2
Year of publication
1999
Pages
190 - 200
Database
ISI
SICI code
0168-9002(19990821)433:1-2<190:POLACP>2.0.ZU;2-G
Abstract
We present the performances of large area CsI-RICH prototypes obtained in s ingle-particle events. The differential quantum efficiency of the photocath odes has been deduced from Cherenkov rings by means of two different proced ures: a direct measurement with a thin NaF radiator and a Monte Carlo-based estimation for a C6F14 radiator. A factor of merit of 45 cm(-1) has been f ound for the typical detector configuration. Two angle reconstruction algor ithms have been used and the different errors affecting the Cherenkov angle resolution have been estimated combining the analytical treatment and the Monte Carlo simulation. Also the dependence on radiator thickness, Cherenko v ring radius, chamber voltage and particle incidence angle has been studie d. (C) 1999 Elsevier Science B.V. All rights reserved.