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CRITICALITY CALCULATION CODES VALIDATION: EXPERIMENTAL NEEDS FOR LOW-MODERATED MOX MEDIA

I. DUHAMEL, V. ROUYER ( IRSN/DSU/SEC) - A. SANTAMARINA, C. VENARD(CEA/DEN/DER/SPRC, CEA Cadarache) 

Workshop on the need of integral critical experiments with low-moderated MOX fuels - 14th-15th april 2004 - OCDE/AEN, Issy-les-Moulineaux, France

Document type > *Congrès/colloque

Keywords > criticality, criticality, MOX

Research Unit > IRSN/DSU/SEC

Authors > DUHAMEL Isabelle, ROUYER Véronique

Publication Date > 21/04/2004

Summary

This paper aims to highlight the need of integral critical experiments dealing with low-moderated MOX media, which are mainly encountered in MOX fuel fabrication plants, transport and dry storage. For this purpose, available experiments dealing with low-enriched uranium, plutonium and/or MOX powders and with low-moderated arrays (low-enriched uranium and mixed U-Pu) were investigated. These experiments were mainly taken from ICSBEP handbook but also from the French calculation codes validation database for fast and thermal reactors (ERANOS and APOLLO2 codes). Several neutronics parameters were compared, in order to confirm that new and accurate experiments are needed to significantly decrease the uncertainties linked to keff prediction for low-moderated MOX media of interest.
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