Resistive plate chamber performance in the BaBar IFR system

The BaBar Collaboration has operated a system covering over 2000 m/sup 2/ with resistive plate chambers for nearly three years. The chambers are constructed of bakelite sheets separated by 2 mm. The inner surfaces are coated with linseed oil. This system provides muon and neutral hadron detection fo...

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Published in:IEEE transactions on nuclear science 2002-06, Vol.49 (3), p.888-893
Main Authors: Anulli, F., Bagnasco, S., Baldini, R., Band, H.R., Bionta, R., Brau, J.E., Brigljevic, V., Buzzo, A., Calcaterra, A., Carpinelli, M., Cartaro, C., Cavallo, N., Crosetti, G., de Sangro, R., De Nardo, G., Eichenbaum, A., Fabozzi, F., Falciai, D., Ferrarotto, F., Ferroni, F., Finocchiaro, G., Forti, F., Frey, R., Gatto, C., Grauges, E., Iwasaki, M., Johnson, J.R., Lange, D.J., Lista, L., Lo Vetere, M., Lu, C., Macri, M., Messner, R., Moore, T.B., Morganti, S., Neal, H., Neri, N., Palano, A., Paoloni, E., Paolucci, P., Passaggio, S., Pastore, F., Patteri, P., Peruzzi, I., Piccolo, M., Piccolo, D., Piredda, G., Robutti, E., Roodman, A., Santroni, A., Sciacca, C., Sinev, N.B., Strom, D., Soha, A., Tosi, S., Va'vra, J., Wisniewski, W.J., Wright, D.M., Xie, Y., Zallo, A.
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Language:eng
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Summary:The BaBar Collaboration has operated a system covering over 2000 m/sup 2/ with resistive plate chambers for nearly three years. The chambers are constructed of bakelite sheets separated by 2 mm. The inner surfaces are coated with linseed oil. This system provides muon and neutral hadron detection for BaBar. Installation and commissioning were completed in 1998, and operation began mid-1999. While initial performance of the system reached design, over time, a significant fraction of the resistive plate chambers demonstrated significant degradation, marked by increased currents and reduced efficiency. A coordinated investigative effort has identified many of the elements responsible for the degradation.
ISSN:0018-9499
1558-1578