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Uncertainty and cor...
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Alhassan, ErwinUppsala universitet,Tillämpad kärnfysik,Nuclear Research Group
(author)
Uncertainty and correlation analysis of lead nuclear data on reactor parameters for the European Lead Cooled Training Reactor
- Article/chapterEnglish2015
Publisher, publication year, extent ...
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Elsevier BV,2015
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:uu-224524
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-224524URI
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https://doi.org/10.1016/j.anucene.2014.07.043DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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The Total Monte Carlo (TMC) method was used in this study to assess the impact of Pb-204, 206, 207, 208 nuclear data uncertainties on reactor safety parameters for the ELECTRA reactor. Relatively large uncertainties were observed in the k-eff and the coolant void worth (CVW) for all isotopes except for Pb-204 with signicant contribution coming from Pb-208 nuclear data; the dominant eectcame from uncertainties in the resonance parameters; however, elastic scattering cross section and the angular distributions also had signicant impact. It was also observed that the k-eff distribution for Pb-206, 207, 208 deviates from a Gaussian distribution with tails in the high k-eff region. An uncertainty of 0.9% on the k-eff and 3.3% for the CVW due to lead nuclear data were obtained. As part of the work, cross section-reactor parameter correlations were also studied using a Monte Carlo sensitivity method. Strong correlations were observed between the k-eff and (n,el) cross section for all the lead isotopes. The correlation between the (n,inl) and the k-eff was also found to be signicant.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Sjöstrand, HenrikUppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group(Swepub:uu)hesjo677
(author)
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Helgesson, PetterUppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group(Swepub:uu)pethe746
(author)
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Arjan, J. KoningUppsala universitet,Tillämpad kärnfysik,Nuclear Research and Consultancy Group(Swepub:uu)arjko970
(author)
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Österlund, MichaelUppsala universitet,Tillämpad kärnfysik,Nuclear Reaction Group(Swepub:uu)miost517
(author)
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Pomp, StephanUppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group(Swepub:uu)steppomp
(author)
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Dimitri, RochmanNuclear Research and Consultancy Group
(author)
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Uppsala universitetTillämpad kärnfysik
(creator_code:org_t)
Related titles
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In:Annals of Nuclear Energy: Elsevier BV75, s. 26-370306-45491873-2100
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