Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/160084
Title: PENGEOM - A general-purpose geometry package for Monte Carlo simulation of radiation transport in material systems defined by quadric surfaces
Author: Almansa, Julio
Salvat Pujol, Francesc
Díaz-Londoño, Gloria
Carnicer, Artur
Lallena, Antonio M.
Salvat Gavaldà, Francesc
Keywords: Mètode de Montecarlo
Visualització (Informàtica)
Transport d'electrons
Monte Carlo method
Information display systems
Electron transport
Issue Date: 1-Feb-2016
Publisher: Elsevier B.V.
Abstract: The Fortran subroutine package pengeom provides a complete set of tools to handle quadric geometries in Monte Carlo simulations of radiation transport. The material structure where radiation propagates is assumed to consist of homogeneous bodies limited by quadric surfaces. The pengeom subroutines (a subset of the penelope code) track particles through the material structure, independently of the details of the physics models adopted to describe the interactions. Although these subroutines are designed for detailed simulations of photon and electron transport, where all individual interactions are simulated sequentially, they can also be used in mixed (class II) schemes for simulating the transport of high-energy charged particles, where the effect of soft interactions is described by the random-hinge method. The definition of the geometry and the details of the tracking algorithm are tailored to optimize simulation speed. The use of fuzzy quadric surfaces minimizes the impact of round-off errors. The provided software includes a Java graphical user interface for editing and debugging the geometry definition file and for visualizing the material structure. Images of the structure are generated by using the tracking subroutines and, hence, they describe the geometry actually passed to the simulation code.
Note: Versió postprint del document publicat a: https://doi.org/10.1016/j.cpc.2015.09.019
It is part of: Computer Physics Communications, 2016, vol. 199, p. 102-113
URI: http://hdl.handle.net/2445/160084
Related resource: https://doi.org/10.1016/j.cpc.2015.09.019
ISSN: 0010-4655
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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