Sökning: L773:0306 4549 OR L773:1873 2100 >
Uncertainty and cor...
Uncertainty and correlation analysis of lead nuclear data on reactor parameters for the European Lead Cooled Training Reactor
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- Alhassan, Erwin (författare)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Research Group
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- Sjöstrand, Henrik (författare)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Helgesson, Petter (författare)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Arjan, J. Koning (författare)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Research and Consultancy Group
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- Österlund, Michael (författare)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reaction Group
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- Pomp, Stephan (författare)
- Uppsala universitet,Tillämpad kärnfysik,Nuclear Reactions Group
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- Dimitri, Rochman (författare)
- Nuclear Research and Consultancy Group
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(creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Annals of Nuclear Energy. - : Elsevier BV. - 0306-4549 .- 1873-2100. ; 75, s. 26-37
- Relaterad länk:
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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
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- TMC
- nuclear data uncertainty
- lead isotopes
- safety parameters
- ELECTRA
- fuel cycle
- Applied Nuclear Physics
- Tillämpad kärnfysik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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