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Correlation (nu)over-bar(p) - sigma for U-Pu in the thermal and resonance neutron range via integral information
Paul Scherrer Inst, Villigen, Switzerland.
Paul Scherrer Inst, Villigen, Switzerland.
Paul Scherrer Inst, Villigen, Switzerland.
Paul Scherrer Inst, Villigen, Switzerland.
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2019 (English)In: The European Physical Journal Plus, ISSN 2190-5444, E-ISSN 2190-5444, Vol. 134, article id 453Article in journal (Refereed) Published
Abstract [en]

This paper presents an application of the Backward-Forward Monte Carlo (BFMC) method using measured critical boron concentrations for a specific PWR cycle. The considered prior nuclear data are the fission cross sections, nu for U-235 and Pu-239 and the capture cross section of U-238. The posterior nuclear data exhibit cross-isotope correlations, moderate changes for the average quantities and reduced uncertainties. This work is the first one considering the BFMC method and an integral system mostly sensitive to thermal neutrons. It contributes to show the impact of integral experimental data for the evaluation of nuclear data and their covariance matrices, leading to cross-isotope correlations and a nuclear data uncertainty reduction.

Place, publisher, year, edition, pages
SPRINGER HEIDELBERG , 2019. Vol. 134, article id 453
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Subatomic Physics
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URN: urn:nbn:se:uu:diva-395695DOI: 10.1140/epjp/i2019-12875-7ISI: 000487805000003OAI: oai:DiVA.org:uu-395695DiVA, id: diva2:1365117
Available from: 2019-10-23 Created: 2019-10-23 Last updated: 2019-10-23Bibliographically approved

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Koning, Arjan

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