Nuclear Science and Engineering / Volume 102 / Number 4 / August 1989 / Pages 423-427
Technical Paper / dx.doi.org/10.13182/NSE89-A23652
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The 240Pu spontaneous fission half-life has been measured using neutron coincidence counting with an enriched source. The measurement was made using a large liquid scintillator tank, and a value of 1.12 × 1011 yr ± 1.6% was obtained.