Analysis of transmutation systems using JENDL-4.0

Iwamoto, Hiroki   ; Nishihara, Kenji  ; Tsujimoto, Kazufumi ; Sugino, Kazuteru; Numata, Kazuyuki*

An analytical study of minor actinide (MA) transmutation systems was conducted using JENDL-4.0, with a comparison to JENDL-3.3 in terms of reactor physics parameters (criticality, void reactivity and the Doppler reactivity) and those uncertainties. As objects of the analyses, Accelerator driven system (ADS) and MA loaded fast reactor (FR) were assumed. It was found that there were considerable changes for both systems. As the results of the sensitivity and uncertainty analysis, we found that the difference of the parameters of ADS is due mainly to the inelastic scattering cross sections of lead isotopes and several reactions of Am. For FR, a large difference of the void reactivity uncertainty results primarily from the covariance data of the inelastic cross section of Na.