Variance-reduction methods for Monte Carlo simulation of radiation transport

After a brief description of the essentials of Monte Carlo simulation methods and the definition of simulation efficiency, the rationale for variance-reduction techniques is presented. Popular variance-reduction techniques applicable to Monte Carlo simulations of radiation transport are described an...

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Autores: García-Pareja, Salvador, Lallena, Antonio M., Salvat Gavaldà, Francesc
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2021
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/194997
Acesso em linha:https://hdl.handle.net/2445/194997
Access Level:Acceso aberto
Palavra-chave:Mètode de Montecarlo
Radiació
Partícules (Matèria)
Monte Carlo method
Radiation
Particles
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spelling Variance-reduction methods for Monte Carlo simulation of radiation transportGarcía-Pareja, SalvadorLallena, Antonio M.Salvat Gavaldà, FrancescMètode de MontecarloRadiacióPartícules (Matèria)Monte Carlo methodRadiationParticlesAfter a brief description of the essentials of Monte Carlo simulation methods and the definition of simulation efficiency, the rationale for variance-reduction techniques is presented. Popular variance-reduction techniques applicable to Monte Carlo simulations of radiation transport are described and motivated. The focus is on those techniques that can be used with any transport code, irrespective of the strategies used to track charged particles; they operate by manipulating either the number and weights of the transported particles or the mean free paths of the various interaction mechanisms. The considered techniques are 1) splitting and Russian roulette, with the ant colony method as builder of importance maps, 2) exponential transform and interaction-forcing biasing, 3) Woodcock or delta-scattering method, 4) interaction forcing, and 5) proper use of symmetries and combinations of different techniques. Illustrative results from analog simulations (without recourse to variance-reduction) and from variance-reduced simulations of various transport problems are presented.Frontiers Media2023202320212023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/194997Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3389/fphy.2021.718873Frontiers In Physics, 2021, vol. 9, p. 718873https://doi.org/10.3389/fphy.2021.718873cc-by (c) García-Pareja, Salvador et al., 2021https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1949972026-05-29T05:05:01Z
dc.title.none.fl_str_mv Variance-reduction methods for Monte Carlo simulation of radiation transport
title Variance-reduction methods for Monte Carlo simulation of radiation transport
spellingShingle Variance-reduction methods for Monte Carlo simulation of radiation transport
García-Pareja, Salvador
Mètode de Montecarlo
Radiació
Partícules (Matèria)
Monte Carlo method
Radiation
Particles
title_short Variance-reduction methods for Monte Carlo simulation of radiation transport
title_full Variance-reduction methods for Monte Carlo simulation of radiation transport
title_fullStr Variance-reduction methods for Monte Carlo simulation of radiation transport
title_full_unstemmed Variance-reduction methods for Monte Carlo simulation of radiation transport
title_sort Variance-reduction methods for Monte Carlo simulation of radiation transport
dc.creator.none.fl_str_mv García-Pareja, Salvador
Lallena, Antonio M.
Salvat Gavaldà, Francesc
author García-Pareja, Salvador
author_facet García-Pareja, Salvador
Lallena, Antonio M.
Salvat Gavaldà, Francesc
author_role author
author2 Lallena, Antonio M.
Salvat Gavaldà, Francesc
author2_role author
author
dc.subject.none.fl_str_mv Mètode de Montecarlo
Radiació
Partícules (Matèria)
Monte Carlo method
Radiation
Particles
topic Mètode de Montecarlo
Radiació
Partícules (Matèria)
Monte Carlo method
Radiation
Particles
description After a brief description of the essentials of Monte Carlo simulation methods and the definition of simulation efficiency, the rationale for variance-reduction techniques is presented. Popular variance-reduction techniques applicable to Monte Carlo simulations of radiation transport are described and motivated. The focus is on those techniques that can be used with any transport code, irrespective of the strategies used to track charged particles; they operate by manipulating either the number and weights of the transported particles or the mean free paths of the various interaction mechanisms. The considered techniques are 1) splitting and Russian roulette, with the ant colony method as builder of importance maps, 2) exponential transform and interaction-forcing biasing, 3) Woodcock or delta-scattering method, 4) interaction forcing, and 5) proper use of symmetries and combinations of different techniques. Illustrative results from analog simulations (without recourse to variance-reduction) and from variance-reduced simulations of various transport problems are presented.
publishDate 2021
dc.date.none.fl_str_mv 2021
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/194997
url https://hdl.handle.net/2445/194997
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3389/fphy.2021.718873
Frontiers In Physics, 2021, vol. 9, p. 718873
https://doi.org/10.3389/fphy.2021.718873
dc.rights.none.fl_str_mv cc-by (c) García-Pareja, Salvador et al., 2021
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) García-Pareja, Salvador et al., 2021
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.198674

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