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Use of probability tables for propagating uncertainties in neutronics

Abstract : Probability tables are a generic tool that allows representing any random variable whose probability density function is known. In the field of nuclear reactor physics, this tool is currently used to represent the variation of cross-sections versus energy (neutron transport codes TRIPOLI4, MCNP, APOLLO2, APOLLO3, ECCO-ERANOS...). In the present article we show how we can propagate uncertainties, thanks to a probability table representation, through two simple physical problems an eigenvalue problem(neutron multiplication factor) and a depletion problem.
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https://hal-cea.archives-ouvertes.fr/cea-02421890
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Submitted on : Friday, December 20, 2019 - 5:11:46 PM
Last modification on : Wednesday, May 6, 2020 - 10:32:05 AM

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M. Coste-Delclaux, Cm. Diop, S. Lahaye. Use of probability tables for propagating uncertainties in neutronics. Annals of Nuclear Energy, Elsevier Masson, 2017, 102, ⟨10.1016/j.anucene.2016.11.044⟩. ⟨cea-02421890⟩

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