Gas Analysis and Monitoring Systems for the RPC Detector of CMS at LHC
M. Abbrescia, A. Colaleo, R. Guida, G. Iaselli, R. Liuzzi, F. Loddo, M. Maggi, B. Marangelli, S. Natali, S. Nuzzo, G. Pugliese, A. Ranieri, F. Romano, R. Trentadue, L. Benussi, M. Bertani, S. Bianco, M. A. Caponero, D. Colonna, D. Donisi, F. L. Fabbri, F. Felli, M. Giardoni B. Ortenzi, M. Pallotta, A. Paolozzi, L. Passamonti, B. Ponzio, C. Pucci, G. Saviano G. Polese, I. Segoni, N. Cavallo, F. Fabozzi, P. Paolucci, D. Piccolo, C. Sciacca G. Belli, A. Grelli, M. Necchi, S. P. Ratti, C. Riccardi, P. Torre, P. Vitulo
Abstract
The Resistive Plate Chambers (RPC) detector of the CMS experiment at the LHC proton collider (CERN, Switzerland) will employ an online gas analysis and monitoring system of the freon-based gas mixture used. We give an overview of the CMS RPC gas system, describe the project parameters and first results on gas-chromatograph analysis. Finally, we report on preliminary results for a set of monitor RPC.
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