The Influence of Isomeric States on Independent Fission Product Yields

David G. Madland; Talmadge R. England

doi:dx.doi.org/10.13182/NSE77-A14501

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 64 / Number 4

The Influence of Isomeric States on Independent Fission Product Yields

David G. Madland, Talmadge R. England

Nuclear Science and Engineering / Volume 64 / Number 4 / December 1977 / Pages 859-865

Technical Paper / dx.doi.org/10.13182/NSE77-A14501

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A simple one-parameter model is presented for calculating the distribution of independent yield strength between ground and isomeric states of primary fission products formed by neutron-induced fission of actinide nuclei. Yield branching ratios are calculated as a function of neutron energy (thermal, fast, and 14-MeV) for 33 cases that span 144 fission product nuclei having isomeric states with known spins.