PYG4OMETRY: a Python library for the creation of Monte Carlo radiation transport physical geometries

TL;DR

PYG4OMETRY is a Python library that simplifies the creation, manipulation, and conversion of geometries for Monte Carlo radiation transport simulations, supporting CAD and GDML formats.

Contribution

It introduces a comprehensive Python toolkit for seamless integration and conversion of geometries across different MCRT codes and CAD tools, enhancing efficiency and reducing errors.

Findings

Enables rapid creation and manipulation of GDML geometries

Supports import/export of CAD files to GDML and FLUKA formats

Provides detailed implementation and practical examples

Abstract

Creating and maintaining computer readable geometries for use in Monte Carlo Radiation Transport (MCRT) simulations is an error-prone and time-consuming task. Simulating a system often requires geometry from different sources and modelling environments, including a range of MCRT codes and computer-aided design (CAD) tools. PYG4OMETRY is a Python library that enables users to rapidly create, manipulate, display, read and write Geometry Description Markup Language (GDML)-based geometry used in simulations. PYG4OMETRY provides importation of CAD files to GDML tessellated solids, conversion of GDML geometry to FLUKA and conversely from FLUKA to GDML. The implementation of PYG4OMETRY is explained in detail along with small examples. The paper concludes with a complete example using most of the PYG4OMETRY features and a discussion of extensions and future work.