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Performance of the Gas Gain Monitoring system of the CMS RPC muon detector and effective working point fine tuning

Authors
Colafranceschi, S.Benussi, L.Bianco, S.Passamonti, L.Piccolo, D.Pierluigi, D.Russo, A.Saviano, G.Vendittozzi, C.Abbrescia, M.Aleksandrov, A.Berzano, U.Calabria, C.Carrillo, C.Colaleo, A.Genchev, V.Iaydjiev, P.Kang, M.Lee, K. S.Loddo, F.Park, S. K.Pugliese, G.Maggi, M.Shin, S.Rodozov, M.Shopova, M.Sultanov, G.Verwillingen, P.
Issue Date
12월-2012
Publisher
IOP PUBLISHING LTD
Keywords
Muon spectrometers; Gaseous detectors
Citation
JOURNAL OF INSTRUMENTATION, v.7
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF INSTRUMENTATION
Volume
7
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/106866
DOI
10.1088/1748-0221/7/12/P12004
ISSN
1748-0221
Abstract
The Gas Gain Monitoring (GGM) system of the Resistive Plate Chamber (RPC) muon detector in the Compact Muon Solenoid (CMS) experiment provides fast and accurate determination of the stability in the working point conditions due to gas mixture changes in the closed loop recirculation system. In 2011 the GGM began to operate using a feedback algorithm to control the applied voltage, in order to keep the GGM response insensitive to environmental temperature and atmospheric pressure variations. Recent results are presented on the feedback method used and on alternative algorithms.
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