Discharge mitigation methods in MPGD-based detectors

TL;DR

This paper reviews various techniques to prevent and mitigate discharges in MPGD-based detectors, focusing on design, operational, and material strategies to enhance stability and longevity.

Contribution

It provides a comprehensive overview of methods for discharge mitigation in MPGDs, including HV optimization, resistive electrodes, and quality control procedures.

Findings

Resistive electrodes improve local discharge quenching.

HV scheme optimization reduces discharge probability.

Design and quality control enhance long-term stability.

Abstract

This work reviews various methods used to minimize the probability of discharge occurrence in MPGDs or to mitigate the effect of spark discharges on the detector system. These include techniques that can reduce the probability that the fundamental discharge limits of MPGD structures are reached during detector operation, methods based on the HV scheme optimisation, or the implementation of resistive electrodes to enhance local discharge quenching capabilities in an amplification structure. In addition, design optimization and quality control methods to ensure stable, long-term operation of an MPGD-based detector, are considered.