Correlation between fragment mass-distribution fine structure, charge distribution and nuclear structure for thermal-neutron-induced fission of 233U and 235U
1973; Elsevier BV; Volume: 205; Issue: 2 Linguagem: Inglês
10.1016/0375-9474(73)90214-5
ISSN1873-1554
AutoresW. Reisdorf, J.P. Unik, L.E. Glendenin,
Tópico(s)Nuclear Physics and Applications
ResumoMasses corresponding to observed fine-structure peaks in the fragment mass distributions for thermal-neutron-induced fission of 233U and 235U are shown to correspond to average measured masses for even-even nuclear charge splits. Evidence is presented that the yield enhancement for even-Z fragments is not restricted just to fission events with higher-than-average total kinetic energy. The anomalously high yield of fragments with mass 134 in 235U(n, f) as opposed to 233(n, f) is tentatively correlated with rapidly changing nuclear structure properties as a function of the mass of the complementary light (Z = 40) fragments.
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