Faire avancer la sûreté nucléaire

La Recherchev2


Definition of a new UO2F2 density law for low-moderated solutions (H/U<20) and consequences on criticality safety



Email :

Mot de passe :

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

Type de document > *Congrès/colloque

Mots clés > criticité, hydrates, Johnson&Kraus, loi densité, sûreté

Unité de recherche > IRSN/DSU/SEC/LERD

Auteurs > EVO Stéphane, LECLAIRE Nicolas

Date de publication > 01/06/2007


In criticality studies, the bulk density of fissile media being generally unknown, density laws are needed to accurately determine the water content associated with the fissile media. They are applicable only on a determined range. Outside this range, the assessment of concentration values can be erroneous. Moreover, they do the link between two input parameters, the fissile nuclide density and the moderation ratio through the bulk density calculation.