Reduction of cross-section-induced errors of the BN-600 hybrid core nuclear parameters by using BFS-62 critical experiment data

The present paper provides evaluation results of predicted uncertainty on nuclear parameters of the BN-600 hybrid core, a feasible option for Russian surplus weapons plutonium disposition. Covariance data for nuclear group constants, analysis errors, as well as experimental errors are considered to predict the uncertainties by applying the nuclear group constant adjustment method. Analysis results of BFS-62 mockup together with other fast reactor core experiments are reflected in the evaluation. (authors)