Nuclear Science and Engineering / Volume 160 / Number 1 / September 2008 / Pages 144-147
Technical Note / dx.doi.org/10.13182/NSE160-144TN
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The spontaneous fission branching ratios (B) of even-Z, 90 Z 100, nuclei were found to be correlated to log B = 1.6247 × Z - 1.0361(2Z - N) - 114.66. Based on this correlation, it is predicted that the isotopes 226Ra and 228Th are spontaneous fission isotopes.