Data uncertainty reduction in high converter reactor designs using PROTEUS phase II integral experiments

A detailed sensitivity and uncertainty analysis was performed for several parameters of interest in the design of the high conversion reactor (HCR) concept. The main goals of this work were to determine the response standard deviation due to basic nuclear data uncertainties, and to incorporate integral experiment information from the PROTEUS facility to reduce the computed uncertainties wherever possible. This paper highlights the results for K and five important reaction rate ratios that were part of the measurement program in the PROTEUS phase II experiments. The computed correlation coefficients between the PROTEUS and HCR models were uniformly high, which indicates that a considerable reduction in uncertainty can be achieved (within measurement uncertainties)