CMS NOTE 1997 / 003 CMS Note
نویسنده
چکیده
Abstract A 2 mm gas gap Resistive Plate Chamber with bakelite plates has been operated in avalanche mode under a 137Cs source irradiation. We report on measurements of the efficiency in cosmic rays detection and of the charge developed in the gap, performed for two different gas mixtures: the first containing a high percentage of environmental friendly ”freon” C2H2F4; the second one having a high percentage of argon. We show that the freon based mixture exhibits a wide full efficiency plateau with low streamer probability, whilethe argon based mixture allows to reduce the detector power consumption.
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J.-M. Le Goff CERN, Geneva, Switzerland G. Chevenier1 Institut fur Teilchenphysik, Eidgenossische Technische Hochschule, Zurich, Switzerland A. Bazan, T. Le Flour, S. Lieunard, S. Murray, J.-P.Vialle LAPP, IN2P3, Annecy-le-Vieux, France N. Baker, F. Estrella1, Z. Kovacs1, R. McClatchey1 Dept. of Computing, Univ. West of England, Frenchay, Bristol BS16 1QY UK G. Organtini Universita di Roma e Se...
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