Studies of etching effects on triple-GEM detectors operated with CF/sub 4/-based gas mixtures.

Authors :: Alfonsi, M.
Baccaro, S.
Bencivenni, G.
Bonivento, W.
Cardini, A.
De Simone, P.
Murtas, F.
Pinci, D.
Lener, M. Poli
Raspino, D.
Saitta, B.
Source :: IEEE Transactions on Nuclear Science. Dec2005 Part 2, Vol. 52 Issue 6, p2872-2878. 7p. 2 Black and White Photographs, 5 Diagrams, 6 Graphs.
Publication Year :: 2005
Abstract: We present the results of a global irradiation test of full size triple-GEM detectors operated with a CF4-based gas mixture. This study has been performed in the framework of an R&D activity on detectors for the innermost region of the first muon station of the LHCb experiment. The prototypes have been irradiated at the Calliope facility of the ENEA-Casaccia with a high intensity 1.25 MeV gamma from a 60Co source. After the irradiation test the detectors' performances have been measured with X-rays and with a 3 GeV pion beam at CERN. A SEM analysis on several samples of the detectors has been performed to complete the understanding of the physical processes occurring in the GEM detector during the strong irradiation [ABSTRACT FROM PUBLISHER]

Subjects :: *DETECTORS
*IRRADIATION
*MUONS
*ELECTRONS
*GASES
*LARGE Hadron Collider

Full Text Access

Tools