Speaker : Jeremie Merlin (CERN)
The GEM technology is widely used in current HEP experiments, including in the harsh environments of the LHC and HL-LHC. Beyond its capability to sustain the most difficult conditions, GEM-based detectors can be adjusted and optimized to counter specific issues such as high interaction rate, operation stability or long-term degradation. Nevertheless, as for most of the micro-pattern technologies, the probability of converting amplification avalanches into streamers and then discharges remains one of the most critical limitations.
In this talk we will summarize the GEM behaviour with respect to discharges and develop opportunities for future technology upgrades.