Validation of tungsten cross sections in the neutron energy region up to 100 keV

Following a series of recent cross section evaluations on tungsten isotopes performed at Oak Ridge National Laboratory (ORNL), this paper presents the validation work carried out to test the performance of the evaluated cross sections based on lead-slowing-down (LSD) benchmarks conducted in Grenoble...

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Main Authors: Pigni Marco T., Žerovnik Gašper, Leal Luiz. C., Trkov Andrej
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714606010
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author Pigni Marco T.
Žerovnik Gašper
Leal Luiz. C.
Trkov Andrej
author_facet Pigni Marco T.
Žerovnik Gašper
Leal Luiz. C.
Trkov Andrej
author_sort Pigni Marco T.
collection DOAJ
description Following a series of recent cross section evaluations on tungsten isotopes performed at Oak Ridge National Laboratory (ORNL), this paper presents the validation work carried out to test the performance of the evaluated cross sections based on lead-slowing-down (LSD) benchmarks conducted in Grenoble. ORNL completed the resonance parameter evaluation of four tungsten isotopes – 182,183,184,186W – in August 2014 and submitted it as an ENDF-compatible file to be part of the next release of the ENDF/B-VIII.0 nuclear data library. The evaluations were performed with support from the US Nuclear Criticality Safety Program in an effort to provide improved tungsten cross section and covariance data for criticality safety sensitivity analyses. The validation analysis based on the LSD benchmarks showed an improved agreement with the experimental response when the ORNL tungsten evaluations were included in the ENDF/B-VII.1 library. Comparison with the results obtained with the JEFF-3.2 nuclear data library are also discussed.
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spelling doaj.art-631b254bf8634a01a2ed9432e548849d2022-12-21T18:25:15ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011460601010.1051/epjconf/201714606010epjconf-nd2016_06010Validation of tungsten cross sections in the neutron energy region up to 100 keVPigni Marco T.0Žerovnik Gašper1Leal Luiz. C.2Trkov Andrej3Oak Ridge National LaboratoryEC-JRCInstitut de Radioprotection et de Sûreté NucléaireInternational Atomic Energy AgencyFollowing a series of recent cross section evaluations on tungsten isotopes performed at Oak Ridge National Laboratory (ORNL), this paper presents the validation work carried out to test the performance of the evaluated cross sections based on lead-slowing-down (LSD) benchmarks conducted in Grenoble. ORNL completed the resonance parameter evaluation of four tungsten isotopes – 182,183,184,186W – in August 2014 and submitted it as an ENDF-compatible file to be part of the next release of the ENDF/B-VIII.0 nuclear data library. The evaluations were performed with support from the US Nuclear Criticality Safety Program in an effort to provide improved tungsten cross section and covariance data for criticality safety sensitivity analyses. The validation analysis based on the LSD benchmarks showed an improved agreement with the experimental response when the ORNL tungsten evaluations were included in the ENDF/B-VII.1 library. Comparison with the results obtained with the JEFF-3.2 nuclear data library are also discussed.https://doi.org/10.1051/epjconf/201714606010
spellingShingle Pigni Marco T.
Žerovnik Gašper
Leal Luiz. C.
Trkov Andrej
Validation of tungsten cross sections in the neutron energy region up to 100 keV
EPJ Web of Conferences
title Validation of tungsten cross sections in the neutron energy region up to 100 keV
title_full Validation of tungsten cross sections in the neutron energy region up to 100 keV
title_fullStr Validation of tungsten cross sections in the neutron energy region up to 100 keV
title_full_unstemmed Validation of tungsten cross sections in the neutron energy region up to 100 keV
title_short Validation of tungsten cross sections in the neutron energy region up to 100 keV
title_sort validation of tungsten cross sections in the neutron energy region up to 100 kev
url https://doi.org/10.1051/epjconf/201714606010
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AT zerovnikgasper validationoftungstencrosssectionsintheneutronenergyregionupto100kev
AT lealluizc validationoftungstencrosssectionsintheneutronenergyregionupto100kev
AT trkovandrej validationoftungstencrosssectionsintheneutronenergyregionupto100kev