Total cross section model with uncertainty evaluated by KALMAN

We propose a new total cross section model including its uncertainty to estimate systematic uncertainty in particle transport simulations. Medians and widths of parameters in the model, which describe the model uncertainty in the simulation, were determined by using the KALMAN code based on the Baye...

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Main Authors: Hashimoto Shintaro, Sato Tatsuhiko
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_03015.pdf
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author Hashimoto Shintaro
Sato Tatsuhiko
author_facet Hashimoto Shintaro
Sato Tatsuhiko
author_sort Hashimoto Shintaro
collection DOAJ
description We propose a new total cross section model including its uncertainty to estimate systematic uncertainty in particle transport simulations. Medians and widths of parameters in the model, which describe the model uncertainty in the simulation, were determined by using the KALMAN code based on the Bayes' theorem. We implemented the new model in the particle and heavy ion transport code system (PHITS), and then performed shielding calculations with neutron beams. By using analysis of variance (ANOVA), the systematic uncertainty associated with the model uncertainty can be estimated from variance in calculated results.
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spelling doaj.art-ccf504166e73462a8a4be610531754502022-12-21T22:36:13ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012390301510.1051/epjconf/202023903015epjconf_nd2019_03015Total cross section model with uncertainty evaluated by KALMANHashimoto Shintaro0Sato Tatsuhiko1Japan Atomic Energy AgencyJapan Atomic Energy AgencyWe propose a new total cross section model including its uncertainty to estimate systematic uncertainty in particle transport simulations. Medians and widths of parameters in the model, which describe the model uncertainty in the simulation, were determined by using the KALMAN code based on the Bayes' theorem. We implemented the new model in the particle and heavy ion transport code system (PHITS), and then performed shielding calculations with neutron beams. By using analysis of variance (ANOVA), the systematic uncertainty associated with the model uncertainty can be estimated from variance in calculated results.https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_03015.pdf
spellingShingle Hashimoto Shintaro
Sato Tatsuhiko
Total cross section model with uncertainty evaluated by KALMAN
EPJ Web of Conferences
title Total cross section model with uncertainty evaluated by KALMAN
title_full Total cross section model with uncertainty evaluated by KALMAN
title_fullStr Total cross section model with uncertainty evaluated by KALMAN
title_full_unstemmed Total cross section model with uncertainty evaluated by KALMAN
title_short Total cross section model with uncertainty evaluated by KALMAN
title_sort total cross section model with uncertainty evaluated by kalman
url https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_03015.pdf
work_keys_str_mv AT hashimotoshintaro totalcrosssectionmodelwithuncertaintyevaluatedbykalman
AT satotatsuhiko totalcrosssectionmodelwithuncertaintyevaluatedbykalman