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Communication Dans Un Congrès Année : 2004

R&D on RPC for the Muon Trigger System for the ALICE experiment in view of p-p data taking

R. Arnaldi
  • Fonction : Auteur
E. Chiavassa
  • Fonction : Auteur
P. Cortese
  • Fonction : Auteur
G. Dellacasa
  • Fonction : Auteur
A. Devaux
  • Fonction : Auteur
N. de Marco
  • Fonction : Auteur
A. Ferretti
  • Fonction : Auteur
M. Gallio
  • Fonction : Auteur
R. Gemme
  • Fonction : Auteur
P. Mereu
  • Fonction : Auteur
A. Musso
  • Fonction : Auteur
C. Oppedisano
  • Fonction : Auteur
A. Piccotti
  • Fonction : Auteur
F. Poggio
  • Fonction : Auteur
E. Scomparin
  • Fonction : Auteur
G. Travaglia
  • Fonction : Auteur
E. Vercellin
  • Fonction : Auteur

Résumé

ALICE (A Large Ion Collider Experiment) is the heavy-ion dedicated experiment at LHC. The Resistive Plate Chamber detector (RPC) with low-resistivity bakelite electrodes was selected for the trigger system of the muon spectrometer. Although the main goal of ALICE is the study of nucleus-nucleus collisions, reference data in p-p interactions will be collected as well. According to the specific aspects of p-p data taking for ALICE and in particular to the ageing requirements, a running mode, referred as highly-saturated avalanche using the same FEE as the one we use for streamer mode was investigated. A detailed study of signal properties was carried out with cosmics rays to get a more precise view of its intrinsic properties (among others the streamer fraction vs. HV). The possibility of detecting avalanche signals with our FEE designed for the streamer mode was successful. Furthermore, tests with muon beam at CERN were carried out with good results: good efficiency, time resolution and cluster size. An analysis of the exhaust gas showed a low HF content: this is an encouraging result in view of long term stability of the detector which is under test
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Dates et versions

in2p3-00024190 , version 1 (30-05-2005)

Identifiants

  • HAL Id : in2p3-00024190 , version 1

Citer

R. Arnaldi, A. Baldit, V. Barret, N. Bastid, G. Blanchard, et al.. R&D on RPC for the Muon Trigger System for the ALICE experiment in view of p-p data taking. 2004 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), Oct 2004, Rome, Italy. ⟨in2p3-00024190⟩
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