Accession Number : AD0638005

Title :   VARIATION OF NUCLEAR CHARGE DISTRIBUTION IN FISSION WITH BOMBARDING ENERGY.

Descriptive Note : Final rept.

Corporate Author : MCGILL UNIV MONTREAL (QUEBEC) DEPT OF CHEMISTRY

Personal Author(s) : Yaffe,Leo

Report Date : 09 AUG 1966

Pagination or Media Count : 6

Abstract : Independent and cumulative cross sections were determined for the formation of a large number of nuclides formed in the fission of U233, U235, U238 and Th232 by protons of energies from 8 to 100 Mev. Charge dispersion curves were constructed. In general the curves broaden with increasing proton energy, attributable to a greater variety of fissionable parents as neutron evaporation becomes more competitive with fission. The most probable charge formed in fission, moves towards stability and neutron-deficient products appear in good yield. Excitation function were constructed for each of the fission products and additional data added to those previously obtained by Friedlander et al (Phys. Rev. v129 p1809 1963). The variation with bombarding energy of the isomer ratio of the metastable to ground state of some of the fission products was studied. Theoretical calculations were made to elucidate the behaviour. (Author)

Descriptors :   (*FISSION, NUCLEAR PROPERTIES), (*FISSION PRODUCTS, *NUCLEAR CROSS SECTIONS), URANIUM, THORIUM, PROTON BOMBARDMENT, EXCITATION, NEUTRONS, NUCLEAR ENERGY LEVELS, NUCLEAR ISOMERS, CANADA

Subject Categories : Radioactiv, Radioactive Wastes & Fission Prod
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE