Conceptual challenges and computational progress in X-ray simulation

TL;DR

This paper reviews recent advances in X-ray simulation using Geant4, highlighting new models for PIXE, validation efforts, and remaining challenges in the field.

Contribution

It introduces new PIXE models enabling Geant4-based simulations and discusses validation of X-ray fluorescence data, advancing the computational modeling of X-ray interactions.

Findings

First Geant4-based PIXE simulation in an experimental context

Validation of EADL data for X-ray fluorescence

Discussion of achievements and open issues in X-ray simulation

Abstract

Recent developments and validation tests related to the simulation of X-ray fluorescence and PIXE with Geant4 are reviewed. They concern new models for PIXE, which has enabled the first Geant4-based simulation of PIXE in a concrete experimental application, and the experimental validation of the content of the EADL data library relevant to the simulation of X-ray fluorescence. Achievements and open issues in this domain are discussed.