Systematics of Nd cumulative fission yields for neutron-induced fission of $^{235}$U, $^{238}$U, $^{238}$Pu, $^{239}$Pu, $^{240}$Pu and $^{241}$Pu
Language
en
Article de revue
This item was published in
The European Physical Journal Plus. 2018 n° 99
Springer
English Abstract
Systematics of cumulative fission yields of the Neodymium isotopes for thermal and fast neutron fission of $^{235}$U, $^{238}$U, $^{238}$Pu, $^{239}$Pu, $^{240}$Pu and $^{241}$Pu were obtained by combining integral results ...Read more >
Systematics of cumulative fission yields of the Neodymium isotopes for thermal and fast neutron fission of $^{235}$U, $^{238}$U, $^{238}$Pu, $^{239}$Pu, $^{240}$Pu and $^{241}$Pu were obtained by combining integral results from the PROFIL experiments with theoretical calculations from the GEF code. The systematic behavior with the Neodymium mass number (A=143, 145, 146, 148, 150) deduced from the experimental trends is consistent with the smooth variation predicted by the GEF calculations, excepted for the $^{238}$U(n,f) reaction. For this system, isotopic and isotonic effects in fission-fragment shell structures are not adequately taken into account in the theoretical calculation. The obtained results also confirm the weak energy dependence of the Nd cumulative fission yields in the energy range of interest for thermal and sodium fast reactors. They suggest an energy dependency comparable to the experimental uncertainty which lies below 3 percent, for the $^{235}$U, $^{239}$Pu and $^{241}$Pu fissile isotopes.Read less <
English Keywords
PROFIL
Neodymium
PHENIX
Origin
Hal imported