Spontaneous Fission Half-Life of Am-242m
Mar 20, 1967
4 pages
Published in:
- Phys.Rev. 155 (1967) 1309-1313
Citations per year
Abstract: (APS)
The spontaneous-fission half-life for the odd-odd nucleus Am242m has been measured by a prompt-neutron fission-fragment coincidence method to be (9.5±3.5)×1011 years. A correlation of experimental spontaneous-fission half-life data for nuclei of all classes was found to be log10τ−(β−Z2A)δM=−9.268(Z2A)+374.0, where β takes the values 42.22, 40.67, and 40.40 for even-even, odd-A, and odd-odd nuclides, respectively, τ is the spontaneous-fission half-life in years, and δM is the mass difference in milli-mass-units (mmu) between the values obtained from Green's smoothly varying mass formula and the experimentally measured values.References(10)
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