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ASYMMETRIC FISSION OF HEAVY NUCLEI
S.G. Ryzhanov
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Abstract
Like alpha decay-, the fisslon of heavy nuclei is considered to be a tunnel effect initiated from the main or excited level of a compound nucleus in spontaneous and induced fisston respectively-. Alpha-decay is considered the most distinctly asymmetric fission. By means of a generalization of the quantum mechanical formula for alpha-decay, a formula for the probability of fission of a heavy nucleus into two fragments with glven atomic and mass numbers from which asymmetric fission results was derived. The distribution of the fragment yields according to their atomic and mass nunbers was obtained in the form of the Gauss- function of chance deflections. The dependence of the perlods of the spontaneous fission of heavy nuclei was deduced from the parameter of the stability that corresponds with the experimental results. (auth)