, Le calcul de la concentration en 14 C dans le combustible avec DARWIN2.3 n'est pas validé expérimentalement aujourd'hui, en l'absence de mesures exploitables. Les principaux freins à cela sont à ce jour une méconnaissance de la concentration, ? Le 14 C est un nucléide formé dans les combustibles
, Nous proposons une expérience permettant de s'affranchir des deux contraintes précédentes, le but étant de valider les sections efficaces des réactions 14, p.et
, Une mesure par scintillation liquide de l'activité en 14 C dans les échantillons irradiés permet de remonter, moyennant la connaissance du flux, au taux de réaction d'activation. La faisabilité de cette expérience a été démontrée pour le réacteur expérimental MINERVE avec un flux neutronique représentatif des REP : la précision cible est atteinte et garantie pour une, O(n,?) contribuant à la formation du 14 C, avec une précision cible de l'ordre de 5%
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