Evaluation of Neutron Cross Section with Uncertainties for Complete Cm Isotopic Family

With regard to the Advanced Fuel Cycle (AFC) design and safeguard applications as well as the design of new generation of nuclear reactors (GEN-IV), new nuclear evaluated data for Minor Actinides (MA) with covariances have been increasingly recognized. In response to this situation, we identified priority nuclides that needed the improved nuclear data with covariances for AFC design and produced the preliminary nuclear data evaluation files for Cm240-250 with half-lives over than 1-day in neutron energy range from above resonance region to 20 MeV. All evaluations in this region were performed with the EMPIRE code with consistent sets of model parameters. The sensitivity matrices by variations of model parameters together with the available measurements were used to produce the covariance matrices through the KALMAN filtering implemented in the EMPIRE code.