SharePoint
Aide
Faire avancer la sûreté nucléaire

La Recherchev2

Publications

CRITICALITY SAFETY ISSUES ASSOCIATED WITH MOX FUEL FABRICATION


Fermer

Authentification

Email :

Mot de passe :

A. DEVITA, J.L. VOITELLIER (MELOX, BP 93124, 30203 Bagnols-sur-Cèze Cedex, France) S. EVO, S. PERRIN, V. ROUYER (IRSN/DSU/SEC, BP 17, 92262 Fontenay-aux-Roses Cedex, France) - Workshop on the need of integral critical experiments with low-moderated MOX fuels - 14th-15th april 2004 - OCDE/AEN, Issy-les-Moulineaux, France

Type de document > *Congrès/colloque

Mots clés > criticité, criticité, MOX

Unité de recherche > IRSN/DSU/SEC

Auteurs > DUHAMEL Isabelle, ROUYER Véronique

Date de publication > 24/05/2004

Résumé

The MELOX criticality safety analysis has been successively validated by the French Safety Authority, taking into account in particular the operating feedback. An important issue in this analysis was to guarantee appropriate safety margins in order to balance some uncertainty on criticality code validation in the area of low moderated MOX powder material. This paper presents the MELOX criticality safety margins analysis and the IRSN assessment. This analysis is mainly based on the identification and justification of intrinsic parameters, which, in addition to "operating" parameters, guarantee appropriate safety margins. Those criticality safety margins could be reduced by a better knowledge of the criticality calculation code uncertainties and with the agreement of the French Safety Authority. Therefore a work program on the codes validation in the area of the low moderated MOX powder should be examined.