A fast tracker for COMPASS based on the GEM

The small area tracking system of COMPASS, a new high-luminosity fixed target experiment at CERN's SPS accelerator, comprises 20 large-size triple GEM (Gas Electron Multiplier) detectors. It was completed and fully operational for the first time for the 2002 muon run. We report on the performan...

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Detalles Bibliográficos
Autores principales: Ketzer, B, Ehlers, J, Friedrich, J, Grube, B, Kappler, S, Konorov, I, Paul, S, Placci, Alfredo, Ropelewski, Leszek, Sauli, Fabio
Lenguaje:eng
Publicado: 2003
Materias:
Nuclear Physics
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(03)02274-6
http://cds.cern.ch/record/908919
Descripción
Sumario:The small area tracking system of COMPASS, a new high-luminosity fixed target experiment at CERN's SPS accelerator, comprises 20 large-size triple GEM (Gas Electron Multiplier) detectors. It was completed and fully operational for the first time for the 2002 muon run. We report on the performance of these chambers in the high- intensity beam and give first results on efficiencies as well as spatial and time resolutions measured for the full set of detectors under various beam conditions.

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