Validation of nuclear data using historical critical assembly measurements

Predictive neutronics simulations depend on accurate nuclear data. We use integral experiments of near critical assemblies as one of the key validation experiments. The accuracy of these measurements is such that they are more constraining to a nuclear data evaluation than the underlying differentia...

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Main Author: White Morgan
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714606005
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spelling doaj-8e5397753f9540e0a26072fa189cdc7c2021-08-02T11:07:49ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011460600510.1051/epjconf/201714606005epjconf-nd2016_06005Validation of nuclear data using historical critical assembly measurementsWhite Morgan0Los Alamos National LaboratoryPredictive neutronics simulations depend on accurate nuclear data. We use integral experiments of near critical assemblies as one of the key validation experiments. The accuracy of these measurements is such that they are more constraining to a nuclear data evaluation than the underlying differential data. But the solutions found in calibrating to these benchmarks are degenerate and other data are necessary to discern which is correct. Recently, we have begun to use activation data for this purpose. This paper describes many of the early Los Alamos experiments that are used in this process, with particular attention given to some of the systematic errors that affect these measurements.https://doi.org/10.1051/epjconf/201714606005
collection DOAJ
language English
format Article
sources DOAJ
author White Morgan
spellingShingle White Morgan
Validation of nuclear data using historical critical assembly measurements
EPJ Web of Conferences
author_facet White Morgan
author_sort White Morgan
title Validation of nuclear data using historical critical assembly measurements
title_short Validation of nuclear data using historical critical assembly measurements
title_full Validation of nuclear data using historical critical assembly measurements
title_fullStr Validation of nuclear data using historical critical assembly measurements
title_full_unstemmed Validation of nuclear data using historical critical assembly measurements
title_sort validation of nuclear data using historical critical assembly measurements
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2017-01-01
description Predictive neutronics simulations depend on accurate nuclear data. We use integral experiments of near critical assemblies as one of the key validation experiments. The accuracy of these measurements is such that they are more constraining to a nuclear data evaluation than the underlying differential data. But the solutions found in calibrating to these benchmarks are degenerate and other data are necessary to discern which is correct. Recently, we have begun to use activation data for this purpose. This paper describes many of the early Los Alamos experiments that are used in this process, with particular attention given to some of the systematic errors that affect these measurements.
url https://doi.org/10.1051/epjconf/201714606005
work_keys_str_mv AT whitemorgan validationofnucleardatausinghistoricalcriticalassemblymeasurements
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