GLS-updated fission yield covariances reduce decay heat uncertainty from ~4% (yield-dominated) to lower values where decay energy uncertainties dominate, with library-specific values of 5-10% at 0.1 s and ~1% at 10^5 s.
Katakura, JENDL FP decay data file 2011 and fission yields data file 2011, Tech
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Generation of fission yield covariance matrices and its application in uncertainty analysis of decay heat
GLS-updated fission yield covariances reduce decay heat uncertainty from ~4% (yield-dominated) to lower values where decay energy uncertainties dominate, with library-specific values of 5-10% at 0.1 s and ~1% at 10^5 s.