Monte-Carlo Geant4 numerical simulation of experiments at 247-MeV proton microscope

TL;DR

This paper presents a Geant4-based Monte Carlo simulation of a 247-MeV proton radiography setup, demonstrating its application to static targets like shock-compressed xenon and step wedges for dynamic process investigation.

Contribution

It introduces a virtual model of a proton microscope in Geant4 and performs full-scale simulations of static radiographic experiments at 247 MeV.

Findings

Simulation of shock-compressed xenon targets

Visualization of copper and PMMA step wedges

Validation of the radiographic setup

Abstract

A radiographic setup for an investigation of fast dynamic processes with areal density of targets up to 5 g/cm$^2$ is under development on the basis of high-current proton linear accelerator at the Institute for Nuclear Research (Troitsk, Russia). A virtual model of the proton microscope developed in a software toolkit Geant4 is presented in the article. Full-scale Monte-Carlo numerical simulation of static radiographic experiments at energy of a proton beam 247 MeV was performed. The results of simulation of proton radiography experiments with static model of shock-compressed xenon are presented. The results of visualization of copper and polymethyl methacrylate step wedges static targets also described.