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

Abstract

Creating and maintaining computer readable geometries for use in Monte Carlo Radiation Transport (MCRT) simulations is an error-prone and timeconsuming 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.

Measurement of secondary neutron spectra induced by 480 MeV proton and 430 MeV/u 4He beams with a thick aluminum target

“…The physical list QGSP_BIC_HP was used for neutrons, which uses the JEFF-3.3 neutron cross section library. The geometric model used in Geant4 was obtained by converting the geometric model used in FLUKA using the PyG4ometry [26] python library.…”