Implementation of the EPICS2017 database for photons in Geant4.

Monte Carlo Method Photons
EPICS2017 Geant4 Livermore Mass attenuation coefficient XCOM

Journal

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
ISSN: 1724-191X
Titre abrégé: Phys Med
Pays: Italy
ID NLM: 9302888

Informations de publication

Date de publication:
Mar 2022
Historique:
received: 13 10 2021
revised: 06 01 2022
accepted: 23 01 2022
pubmed: 13 2 2022
medline: 9 3 2022
entrez: 12 2 2022
Statut: ppublish

Résumé

This paper describes in detail the implementation of Geant4 Livermore electromagnetic physics models based on the EPICS2017 database for the low energy transport of photons. These models describe four photon processes: gamma conversion, Compton scattering, photoelectric effect and Rayleigh scattering. New parameterizations based on EPICS2017 were performed for scattering functions of Compton effect, subshell cross-sections of the photoelectric effect and form factors of Rayleigh scattering, in order to improve the precision of fitted values compared to tabulated values. Comparisons between new and old parameterizations were also carried out to evaluate the precision of the new parameterizations. The models were tested through a comparative study, in which the mass attenuation coefficient was calculated for both total photon interaction and each process using Geant4 simulations based on EPICS2017 and EPDL97 respectively. The results obtained from the simulations were found in good agreement with the XCOM reference data.

Identifiants

DOI: 10.1016/j.ejmp.2022.01.008 PMID: 35149324
pubmed: 35149324
pii: S1120-1797(22)01409-0
doi: 10.1016/j.ejmp.2022.01.008
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

94-115

Informations de copyright

Copyright © 2022 Associazione Italiana di Fisica Medica e Sanitaria. Published by Elsevier Ltd. All rights reserved.

Auteurs

Zhuxin Li (Z)

CNRS, Université Bordeaux, CENBG, UMR5797, Gradignan F-33170, France. Electronic address: li@cenbg.in2p3.fr.

Claire Michelet (C)

CNRS, Université Bordeaux, CENBG, UMR5797, Gradignan F-33170, France. Electronic address: michelet@cenbg.in2p3.fr.

Sébastien Incerti (S)

CNRS, Université Bordeaux, CENBG, UMR5797, Gradignan F-33170, France. Electronic address: incerti@cenbg.in2p3.fr.

Vladimir Ivanchenko (V)

Tomsk State University, Tomsk 634050, Russia; CERN, Geneve 23, CH1211, Switzerland. Electronic address: Vladimir.Ivantchenko@cern.ch.

Mihaly Novak (M)

CERN, Geneve 23, CH1211, Switzerland. Electronic address: mihaly.novak@cern.ch.

Susanna Guatelli (S)

Center for Medical and Radiation Physics, University of Wollongong, New South Wales 2522, Australia. Electronic address: susanna@uow.edu.au.

Hervé Seznec (H)

CNRS, Université Bordeaux, CENBG, UMR5797, Gradignan F-33170, France. Electronic address: seznech@cenbg.in2p3.fr.

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Classifications MeSH

questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Statistiques comme sujet › Méthode de Monte Carlo › Implementation of the EPICS2017 database for...
questionsmedicales.fr › Phénomènes physiques › Rayonnement › Rayonnement non ionisant › Lumière › Photons › Implementation of the EPICS2017 database for...