CERN Accelerating science

Article
Report number	arXiv:1605.08172
Title	Preliminary results of Resistive Plate Chambers operated with eco-friendly gas mixtures for application in the CMS experiment
Author(s)	Abbrescia, M. (INFN, Bari) ; Van Auwegem, P. (Gent U.) ; Benussi, L. (Frascati) ; Bianco, S. (Frascati) ; Cauwenbergh, S. (Gent U.) ; Ferrini, M. (Frascati ; Facolta di Ingegneria, Rome) ; Muhammad, S. (Frascati ; Facolta di Ingegneria, Rome ; Quaid-i-Azam U.) ; Passamonti, L. (Frascati) ; Pierluigi, D. (Frascati) ; Piccolo, D. (Frascati) ; Primavera, F. (Frascati) ; Russo, A. (Frascati) ; Saviano, G. (Facolta di Ingegneria, Rome ; Frascati) ; Tytgat, M. (Gent U.)
Publication	2016
Imprint	26 May 2016
Number of pages	7
Note	7 pages, 7 figures. arXiv admin note: text overlap with arXiv:1505.01648
In:	JINST 11 (2016) C09018
In:	13th Workshop on Resistive Plate Chambers and Related Detectors, Ghent, Belgium, 22 - 26 Feb 2016, pp.C09018
DOI	10.1088/1748-0221/11/09/C09018
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	The operations of Resistive Plate Chambers in LHC experiments require Fluorine based (F-based) gases for optimal performance. Recent European regulations demand the use of environmentally unfriendly F-based gases to be limited or banned. In view of the CMS experiment upgrade, several tests are ongoing to measure the performance of the detector with these new ecological gas mixtures, in terms of efficiency, streamer probability, induced charge and time resolution. Prototype chambers with readout pads and with the standard CMS electronic setup are under test. In this paper preliminary results on performance of RPCs operated with a potential eco-friendly gas candidate 1,3,3,3-Tetrafluoropropene, commercially known as HFO-1234ze, with CO2 and CF3I based gas mixtures are presented and discussed for the possible application in the CMS experiment.
Copyright/License	arXiv nonexclusive-distrib. 1.0

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