Published 1973 | Version v1
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Experimental study of the higher isotopes of plutonium in the coupled fast-thermal assembly Ermine

Description

The most important results so far of the plutonium isotopes programme carried out in Ermine are reviewed. The results were obtained on four networks: one with uranium fuel and three with plutonium. The choice of these four networks was essentially based on the energy range of their nuclear reactions, wide enough to include the large reactor energy range, and yet realistic, with a neutron energy distribution in the 4 networks which is never very far from that encountered in a power reactor. The information relative to the high isotopes of plutonium which were obtained in these networks mostly came from: the fission indices measured in the 4 networks, the study of the balance in the two media at k(infinite)=1, reactivity measurements on cell replacements and on various plutonium samples, carried out on the three plutonium fuel networks

Availability note (English)

MF available from INIS under the Report Number.

Abstract (French)

Cette etude fait le point de l'essentiel de ce qui a deja ete realise dans Ermine par le programme isotopes du plutonium. Les resultats ont ete acquis dans quatre reseaux, un a combustible uranium et trois a combustible plutonium. Le choix de ces quatre reseaux est lie essentiellement au domaine d'energie des reactions qui s'y produisent, domaine suffisamment large pour couvrir la gamme interessant les grand reacteurs, mais egalement domaine realiste, la distribution en energie des neutrons dans chacun de ces quatre reseaux n'etant jamais tres eloignee de celle d'un reacteur de puissance. Les informations, concernant les isotopes superieurs du plutonium qui ont ete obtenues dans ces reseaux proviennent principalement: des indices de fission mesures dans les quatre reseaux, de l'etude du bilan des deux milieux a k(infini)=1, des mesures de reactivite de remplacement de cellules et de divers echantillons de plutonium effectuees dans les trois reseaux a combustible plutonium

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Additional details

Additional titles

Original title (French)
Etude experimentale des isotopes superieurs du plutonium dans l'assemblage couple thermique-rapide Ermine

Publishing Information

Imprint Pagination
vp.
Report number
FRNC-TH--618