Robustness test of a system of MSGC+GEM detectors at the cyclotron facility of the Paul Scherrer institute Academic Article uri icon


  • A system of detector modules consisting of a large size Gas Electron Multiplier (GEM), coupled to Micro Strip Gas Counters (MSGC), has been exposed to a pion beam at the Paul Scherrer Institute Cyclotron facility. As part of a CMS tracker milestone, the aim of this test was to investigate the robustness of such detectors when exposed to experimental conditions close to what is expected at the Large Hadron Collider (LHC) of CERN. Eighteen detector modules have been operated at voltage settings corresponding to 98% detection efficiency for Minimum Ionizing Particles during a period of 5 weeks. Sparking rates and strip losses have been monitored throughout the exposure. An operation margin of at least a factor of three with respect to the required gas gain has been demonstrated. © 2001 Elsevier Science B.V. All rights reserved.

author list (cited authors)

  • Ageron, M., Albert, A., Barvich, T., Beaumont, W., Beckers, T., Bernier, K., ... Zhukov, V.

citation count

  • 1

publication date

  • October 2001