New delayed neutron group constants and covariances for LWR core applications, combining summation calculations and integral experiments

P. Leconte,P. Archier,C. De Saint Jean,R. Diniz,A. Dos Santos, L. Fautrat,D. Foligno,B. Geslot,E. Gilad,P. Tamagno,G. Truchet,A. Zoia

Annals of Nuclear Energy（2020）

Cited 9|Views27

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Abstract

•A combined microscopic/macroscopic approach to evaluate delayed neutron data.•JEFF-311 and JENDL-4 nuclear data agree well with two integral experiments.•Reduction of reactivity uncertainty with the correlation matrix on (Ti, ai).

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Key words

lwr core applications,summation calculations

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