# Recent Developments on PIXE Simulation with Geant4

## TL;DR

This paper reviews recent efforts to enhance PIXE simulation accuracy in Geant4, introduces new software tools, and demonstrates their application to space telescope detector shielding analysis.

## Contribution

It presents new software developments that improve PIXE simulation in Geant4 and applies them to space mission detector shielding studies.

## Key findings

- Enhanced PIXE simulation capabilities in Geant4.
- Successful application to space telescope detector shielding.
- Improved understanding of PIXE effects in space environments.

## Abstract

Particle induced X-ray emission (PIXE) is an important physical effect that is not yet adequately modelled in Geant4. This paper provides a critical analysis of the problem domain associated with PIXE simulation and describes a set of software developments to improve PIXE simulation with Geant4. The capabilities of the developed software prototype are illustrated and applied to a study of the passive shielding of the X-ray detectors of the German eROSITA telescope on the upcoming Russian Spectrum-X-Gamma space mission.