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Comparaison des résultats de calculs de la base de qualification APOLLO2-MORET 4 avec les évaluations JEF2.2 et JEFF3.1


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Titre du congrès :ICNC 2007 Ville du congrès :Saint-Petersbourg Date du congrès :28/05/2007

Type de document > *Congrès/colloque

Mots clés > APOLLO2-MORET 4, données nucléaires de base, JEF2.2, JEFF3.1, qualification

Unité de recherche > IRSN/DSU/SEC/LERD

Auteurs > DUHAMEL Isabelle, EVO Stéphane

Date de publication > 01/06/2007

Résumé

The validation of the standard route of the CRISTAL French criticality package, namely APOLLO2-MORET 4, is based on the calculation of more than 1800 critical experiments. This validation database contains a broad variety of configurations in terms of fissile medium, moderator, reflector and neutron spectrum. Therefore, this validation database has been used to contribute to the validation of the JEFF3.1 nuclear data evaluation file. Calculation-experiment comparisons highlight that for most of the cases, JEFF3.1 data improve the keff prediction. However, improvements are still needed for several isotopes in some areas, especially in intermediate spectra.