Pre-installation tests and calibration of the ALICE TOF modules

A. Akindinov,A. Alici, P. Antonioli, S. Arcelli,Y.W. Baek,M. Basile,G. Cara Romeo, L. Cifarelli, F. Cindolo,A. De Caro,D. De Gruttola,S. De Pasquale,M. Fusco Girard,Yu. Grishuk,D. Hatzifotiadou,H.T. Jung,W.W. Jung,D.S. Kim,D.W. Kim,H.N. Kim,J.S. Kim,S. Kiselev,G. Laurenti,K. Lee,S.C. Lee,D. Malkevich, A. Margotti, R. Nania,A. Nedosekin,F. Noferini,P. Pagano,A. Pesci,O. Pinazza,R. Preghenella,M. Ryabinin,E. Scapparone,G. Scioli,A. Silenzi,K. Voloshin,M.C.S. Williams,C. Zampolli, A. Zichichi

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2012）

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摘要

Before installation into the ALICE experiment, all 87 modules of the TOF system had to undergo a series of tests. Initial check-ups included control of the gas tightness, readout connections quality, and high-voltage tests. Further tests were performed on a specially constructed Cosmic Ray Test Facility, where main characteristics of the modules were scanned under the working high voltage by means of cosmic muons. All TOF channels proved to provide the detection efficiency of more than 97% and time resolution of 80–110ps, which complies with the ALICE requirements.

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关键词

MRPC,ALICE,TOF,START,Cosmic rays

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