The proton zero degree calorimeter for the ALICE experiment

Author

Arnaldi, R. ; Basciu, S. ; Chiavassa, E. ; Cicalò, C. ; Cortese, P. ; De Falco, A. ; Dellacasa, G. ; De Marco, N. ; Ferretti, A. ; Floris, M. ; Gallio, M. ; Gemme, R. ; Masoni, A. ; Mereu, P. ; Musso, A. ; Oppedisano, C. ; Piccotti, A. ; Poggio, F. ; Pudd

Author_Institution

INFN, Torino, Italy

Volume

1

fYear

2004

fDate

16-22 Oct. 2004

Firstpage

629

Abstract

The proton zero degree calorimeter (ZP) for the ALICE experiment will measure the energy of the spectator protons in heavy ion collisions. The ZP is a spaghetti calorimeter, which collects and measures the Cherenkov light produced by the shower particles in silica optical fibres embedded in a brass absorber. The details of its construction will be shown. The calorimeter has been tested at the CERN SPS in July 2004 with pion and electron beams of various momenta ranging from 50 to 200 GeV/c. The linearity of the response of the calorimeter and its energy resolution as a function of the beam energy have been measured. The preliminary results of the test are presented.

Keywords

Cherenkov counters; particle calorimetry; position sensitive particle detectors; proton detection; scintillation counters; ALICE experiment; CERN SPS; Cherenkov light; beam energy; brass absorber; electron beam; energy resolution; heavy ion collisions; pion beam; proton zero degree calorimeter; shower particles; silica optical fibres; spaghetti calorimeter; spectator proton energy; Electron beams; Energy measurement; Energy resolution; Linearity; Mesons; Optical fibers; Particle measurements; Protons; Silicon compounds; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2004 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8700-7

Electronic_ISBN

1082-3654

Type

conf

DOI

10.1109/NSSMIC.2004.1462272

Filename

1462272