Open AccessSpallation-Fission Competition in Heaviest Elements; HeliumIon-Induced Reactions in Uranium Isotopes
Author(s) -
R. Vandenbosch,
T. D. Thomas,
S. E. Vandenbosch,
R. A. Glass,
G. T. Seaborg
Publication year - 1958
Language(s) - English
Resource type - Reports
DOI - 10.2172/915458
Subject(s) - spallation , fission , isotopes of uranium , plutonium , radiochemistry , isotope , fission product yield , uranium , long lived fission product , nuclear physics , isotopes of samarium , fission products , uranium 238 , plutonium 240 , uranium 235 , depleted uranium , chemistry , plutonium 239 , neutron , physics
A radiochemical study of fission and spallation products produced by bombardment of U{sup 233}, U{sup 235}, and U{sup 238} with 18-46 Mev helium ions has been made. As in the case of similar studies using isotopes of plutonium as targets, most of the reaction cross section is taken up by fission. Also, the pronounced increase of the total cross section for ({alpha},xn) reactions with increasing mass number of the target that was observed for plutonium targets is observed for uranium targets