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HF production in CMS-Resistive Plate Chambers

✍ Scribed by M. Abbrescia; A. Colaleo; R. Guida; G. Iaselli; F. Loddo; M. Maggi; B. Marangelli; S. Natali; S. Nuzzo; G. Pugliese; A. Ranieri; F. Romano; R. Trentadue; N. Cavallo; F. Fabozzi; P. Paolucci; D. Piccolo; G. Polese; C. Sciacca; G. Belli; M. Necchi; S. Ratti; C. Riccardi; P. Torre; P. Vitulo; T. Anguelov; V. Genchev; B. Panev; S. Piperov; G. Sultanov; P. Vankov; L. Litov; B. Pavlov; P. Petkov

Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 344 KB
Volume: 158
Category: Article
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2006.07.002

No coin nor oath required. For personal study only.

✦ Synopsis

The formation of highly reactive compounds in the gas mixture during Resistive Plate Chambers (RPCs) operation at the CERN Gamma Irradiation Facility (GIF) is studied. Results from two different types of chambers are discussed: 50 x 50 cm 2 RPC prototypes and two final CMS-RB1 chambers. The RB1 detectors were also connected to a closed loop gas system. Gas composition, possible additional impurities as well as fluoride ions have been monitored in different gamma irradiation conditions both in open and closed loop mode. The chemical composition of the RPC electrode surface has also been analyzed using an electron microscope equipped with an EDS/X-ray.

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