Study of space charge phenomena in GEM-based detectors

TL;DR

This paper investigates how space charge buildup in GEM detectors influences their performance, emphasizing the roles of initial charge distribution and applied voltages through a hybrid numerical model.

Contribution

It introduces a hybrid numerical model to analyze space charge effects in single GEM detectors, highlighting the impact of initial charge and voltage settings.

Findings

Space charge accumulation significantly affects detector parameters.

Initial charge configurations influence charge sharing and detector response.

Applied voltages modulate space charge effects.

Abstract

Space charge accumulation within GEM holes is one of the vital phenomena which affects many of the key working parameters of the detector. This accumulation is found to be significantly affected by the initial primary charge configurations and applied GEM voltages since they determine charge sharing and the subsequent evolution of detector response. In this work, we have studied the effects of space charge phenomena on different parameters for single GEM detectors using a hybrid numerical model.