# High voltage scheme optimization for secondary discharge mitigation in GEM-based detectors

## TL;DR

This paper proposes an optimized high voltage scheme for GEM detectors to prevent secondary discharges, enhancing detector stability and safety of electronics, with potential application to complex multi-GEM systems.

## Contribution

It introduces a detailed high voltage configuration with optimized resistors and capacitances to mitigate secondary discharges in GEM detectors.

## Key findings

- Optimized resistor and capacitance values reduce secondary discharge occurrence.
- The proposed scheme improves GEM detector stability and safety.
- Guidelines applicable to multi-GEM detector systems.

## Abstract

We investigate the influence of the high voltage scheme elements on the stability of a detector based on a single $10\times10$ cm$^2$ area GEM with respect to the secondary discharge occurrence. These violent events pose a major threat to the integrity of GEM detectors and their Front-End Electronics and need to be avoided by any means. For a single GEM setup, we propose a detailed high voltage scheme that is designed to prevent secondary discharges. We determine optimal values of the protection resistors and parasitic capacitances introduced by cables used in the system. The results of this paper may be used as a guideline for the optimization of more complicated multi-GEM detectors.