Abstract
Among the processes of nuclear decay, fission is certainly the most complicated. Spontaneous fission (SF) was discovered by Flerov and Petrzhak in 1940, following the discovery of neutron induced fission by Hahn and Strassmann in 1938. The process is observed in high mass number nuclides. The ratio of the probability of spontaneous fission to that of alpha decay increases with the atomic number Z and the number of neutrons N in the nucleus. For 238U the ratio is 1:106, whereas in 256Fm it is approximately 11.5:1.
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Reference
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Magill, J. (2003). Fission Products and Yields ϒ. In: Nuclides.net. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55764-4_8
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DOI: https://doi.org/10.1007/978-3-642-55764-4_8
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