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Performance of GEM detectors in high intensity particle beams |
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| Authors: | S Bachmann A Bressan B Ketzer M Deutel L Ropelewski F Sauli A Bondar A Buzulutskov L Shekhtman A Sokolov A Tatarinov A Vasil'ev S Kappler E Schulte |
| Affiliation: | a CERN, EP Division, 1211 Geneva 23, Switzerland b Budker institute of Nuclear Physics, Novosibirsk, Russia c University of Karlsruhe, Germany d University of Helsinki, Finland |
| Abstract: | We describe extensive tests of Double Gas Electron Multiplier (GEM) and Triple GEM detectors, including large size prototypes for the COMPASS experiment, exposed to high intensity muon, proton and pion beams at the Paul Scherrer Institute and at CERN. The measurements aim at detecting problems possibly appearing under these harsh operating conditions, the main concern being the occurrence of discharges induced by beam particles. Results for the dependence of the probability for induced discharges on the experimental environment are presented and discussed. Implications for the application of GEM detectors in experiments at high luminosity colliders are illustrated. |
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