Numerical Estimation of Primary Ionization with Noble Gases

TL;DR

This paper presents a simulation study of primary ionization in noble gases using Geant4, highlighting xenon’s superior ionization properties to improve gaseous detector performance in high energy physics.

Contribution

It introduces a method to simulate and distinguish primary from secondary ionizations in noble gases, aiding in detector damage prevention.

Findings

Xenon exhibits the highest primary ionization among noble gases.

Simulation effectively separates primary from secondary ionizations.

Results can help optimize gaseous detector design.

Abstract

In high energy physics experiments, the numerical estimation of primary ionization is crucial. An advance study on primary ionization can help in minimizing the effects such as electrical discharges that can damage the gaseous detectors used in high energy physics experiments. The simulation of primary ionization of electrons and positrons with the noble gases using the geant4 toolkit have been presented. The obtained primaries have been separated from secondaries as the later contribute towards electrical discharges and further damage the detectors. The xenon gas shows highest primary ionization among the noble gases.