In this study we investigate the intrinsic stability limits of GEM, Thick GEM and Micromegas detectors upon irradiation with alpha particles. The measurements are performed in Ar- and Ne- based mixtures with different CO2 content to study the influence of the gas on discharge probability and critical charge limits. The latter are evaluated by comparing the experimental data to results obtained...
From 2018 to the first months of 2022, the Large Hadron Collider (LHC) and the experiments installed on the accelerator ring have performed the Long Shutdown 2 (LS2) upgrade campaign, to cope with the challenges offered by the High Luminosity LHC project. This phase will consist in an increase of the luminosity delivered to the experiments, aiming at enlarging the data statistics, for search...
Resistive anodes are employed in gaseous detectors to avoid or minimize the damaging effects of discharges and to protect the readout electronics. We have characterized discharges in Thick-GEM-based WELL configurations with and without resistive anodes, employing different charge evacuation mechanisms. We used a new method for the resistive detectors to identify gas breakdowns that occur when...
