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Interpretation of the Fragment Mass Distribution for U235 Thermal-Neutron-Induced Fission with Long-Range Alpha Emission

H. W. Schmitt

N. Feather

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee

  • Department of Natural Philosophy, University of Edinburgh, Edinburgh, Scotland

Phys. Rev. 134, B565 – Published 11 May, 1964

DOI: https://doi.org/10.1103/PhysRev.134.B565

Abstract

An analysis of the fragment mass distribution for the thermal-neutron-induced ternary fission of U235 is given. Quantitative comparison of the mass-distribution data for binary and ternary fission is consistent with the influence of the closed-shell configurations in fission, although it is shown that these mass distributions of themselves are not sufficient to determine unambiguously the origin of the alpha particle. Results of this analysis are discussed in relation to some recently proposed models of ternary fission. It is shown that the results of measurements of the number of neutrons emitted in binary fission, as a function of fragment mass, are consistent with the cluster-model interpretation.

References (11)

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