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Glass resistive plate chambers in the OPERA experiment

✍ Scribed by A. Candela; E. Carrara; M. D’Incecco; A. Di Giovanni; S. Dusini; C. Gustavino; A. Lindozzi; A. Longhin; S. Micanovic; D. Orlandi; M. Stipcevic; E. Tatananni; I. Zamboni


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
499 KB
Volume
581
Category
Article
ISSN
0168-9002

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✦ Synopsis


OPERA is an underground neutrino oscillation experiment to search for n t appearance from a pure n m beam produced at CERN. To flag the events due to the neutrino interactions with the rock surrounding the OPERA detector, a large VETO system, based on the use of Glass Resistive Plate Chambers (GRPC) has been realized. We describe the detectors, the tests performed before the installation in the underground laboratories and the monitor system for the water pollution in the GRPC gas mixture.


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The OPERA experiment [1] will study νμ → ντ oscillations through τ appearance on the 732 Km long CERN to Gran Sasso baseline. The magnet yokes of the two muon spectrometers are instrumented with 44 layers of high resistivity bakelite Resistive Plate Chambers (RPCs) operated in streamer mode. Each la