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Uncertainty analysi...
Uncertainty analysis of Lead cross sections on reactor safety for ELECTRA
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- Alhassan, Erwin (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Research Group
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- Sjöstrand, Henrik (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Duan, Junfeng (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Gustavsson, Cecilia (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Pomp, Stephan (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Österlund, Michael (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reaction Group
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- Rochman, Dimitri (author)
- Nuclear Research and Consultancy Group
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- Koning, Arjan J. (author)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Research and Consultancy Group
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(creator_code:org_t)
- 2014-06-06
- 2016
- English.
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In: SNA + MC 2013 - Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo. - Les Ulis, France : EDP Sciences.
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https://www.sfen.fr/...
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https://uu.diva-port... (primary) (Raw object)
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http://uu.diva-porta...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The Total Monte Carlo (TMC) method was used in this study to assess the impact of Pb-206, 207 and 208 nucleardata uncertainties on k-eff , beta-eff, coolant temperature coefficient, the coolant void worth for the ELECTRA reactor. Relatively large uncertainties were observed in the k-eff and the coolant void worth for all the isotopes with significant contribution coming from Pb-208 nuclear data. The large Pb-208 nuclear data uncertainty observed was further investigated by studying the impact of partial channels on the k-eff and beta-eff. Various sections of ENDF file: elasticscattering (n,el), inelastic scattering (n,inl), neutron capture (n,gamma), (n,2n), resonance parameters and the angular distribution were varied randomly and distributions in k-eff and beta-eff obtained. The dominant contributions to the uncertainty in the k-eff from Pb-208 came from uncertainties in the resonance parameters; however, elastic scattering cross section and the angular distribution also had significant impact. The impact of nuclear data uncertainties on the beta-eff was observed to be small.
Subject headings
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Keyword
- TMC
- nuclear data uncertainty
- lead isotopes
- safety parameters
- ELECTRA
- fuel cycle
- Applied Nuclear Physics
- Tillämpad kärnfysik
Publication and Content Type
- ref (subject category)
- kon (subject category)
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