Reduction of Cross-Section-Induced Errors of the BN-600 Hybrid Core Nuclear Parameters by Using BFS-62 Critical Experiment Data

Shono, Akira; Hazama, Taira ; Ishikawa, Makoto; Manturov, G.*

The present paper provides evaluation results of predicted uncertainty on nuclear parameters on the BN-600 hybrid core, a feasible option for Russian surplus weapons plutonium disposition. Covariance of nuclear group constant, analysis error, and experimental error are considered to predict uncertainties of the hybrid core nuclear parameters by applying the nuclear group constant adjustment method. Analysis results of BFS mockup and other fast reactor core experiments were reflected in the evaluation.