Performances of RPCs in the BaBar experiment

F. Anulli, R. Baldini, H. Band, R. Bionta, J. Brau, V. Brigljevic, A. Buzzo, A. Calcaterra, M. Carpinelli, T. Cartaro, N. Cavallo, G. Crosetti, G. De Nardo, R. De Sangro, A. Eichenbaum, D. Falciai, F. Fabozzi, F. Ferroni, G. Finocchiaro, F. FortiR. Frey, J. Johnson, C. Gatto, E. Grauges-Pous, M. Iwasaki, D. Lange, L. Lista, M. Lo Vetere, C. Lu, H. Neal, N. Neri, M. Macri, B. Messener, M. R. Monge, T. Moore, S. Morganti, A. Palano, E. Paoloni, P. Paolucci, S. Passaggio, F. Pastore, C. Patrignani, P. Patteri, I. Peruzzi, D. Piccolo, M. Piccolo, G. Piredda, A. Pompili, E. Robutti, A. Roodman, A. Santroni, C. Sciacca, N. Sinev, A. Soha, D. Storm, S. Tosi, J. Va'vra, Y. Xie, D. Wright, W. Wisniewski

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

The BaBar experiment uses a big system based on RPC detectors to discriminate muons from pions and to identify neutral hadrons. About 2000 m 2 of RPC chambers have been working at SLAC since the end of 1998. We report on the performances of the RPC chambers focusing on new problems discovered in the RPC behaviour. These problems started very soon after the installation of the chambers on the detector when the high-ambient temperature triggered an increase of dark currents inside the chambers and a reduction of the efficiency. Careful analysis of the BaBar data and dedicated R&D efforts in the laboratory have helped to identify the main source of the trouble in the linseed oil varnish on the bakelite electrodes.

Original languageEnglish (US)
Pages (from-to)322-327
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume515
Issue number1-2
DOIs
StatePublished - Dec 1 2003
Externally publishedYes
EventProceedings of the International Workshop on Aging Phenomena (AGING 2001) - Hamburg, Germany
Duration: Oct 2 2001Oct 5 2001

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Keywords

  • BaBar
  • IFR
  • RPCs

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