The CMS RPC muon detector utilizes a gas recirculation system called closed loop (CL) to cope with large gas mixture volumes and costs. A systematic study of CL gas purifiers has been carried out over 400 days between July 2008 and August 2009 at CERN in a low-radiation test area, with the use of RPC chambers with currents monitoring, and gas analysis sampling points. The study aimed to fully clarify the presence of pollutants, the chemistry of purifiers used in the CL, and the regeneration procedure. Preliminary results on contaminants release and purifier characterization are reported. (C) 2010 Elsevier B.V. All rights reserved.
Study of gas purifiers for the CMS RPC detector / Benussi, Luigi; S., Bianco; Colafranceschi, Stefano; F. l., Fabbri; Felli, Ferdinando; Ferrini, Mauro; M., Giardoni; T., Greci; Paolozzi, Antonio; L., Passamonti; D., Piccolo; D., Pierluigi; A., Russo; Saviano, Giovanna; S., Buontempo; A., Cimmino; M., Fabozzi De Gruttola; F., Fabozzi; A. o. m., Iorio; L., Lista; P., Paolucci; P., Baesso; G., Belli; D., Pagano; S. p., Ratti; A., Vicini; P., Vitulo; C., Viviani; R., Guida; A., Sharma. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - STAMPA. - 661:1(2012), pp. S241-S244. [10.1016/j.nima.2010.08.089]
Study of gas purifiers for the CMS RPC detector
COLAFRANCESCHI, STEFANO;FELLI, Ferdinando;FERRINI, Mauro;PAOLOZZI, Antonio;SAVIANO, Giovanna;
2012
Abstract
The CMS RPC muon detector utilizes a gas recirculation system called closed loop (CL) to cope with large gas mixture volumes and costs. A systematic study of CL gas purifiers has been carried out over 400 days between July 2008 and August 2009 at CERN in a low-radiation test area, with the use of RPC chambers with currents monitoring, and gas analysis sampling points. The study aimed to fully clarify the presence of pollutants, the chemistry of purifiers used in the CL, and the regeneration procedure. Preliminary results on contaminants release and purifier characterization are reported. (C) 2010 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
