Impact of spread in minor actinide data from ENDF/B-VII.0, ENDF/B-VI.8, JENDL-3.3 and JEFF-3.0 on an IAEA-CRP FBR benchmark for MA incineration

Under an IAEA Coordinated Research Project (CRP), an FBR Model has been designed to study feasibility of incineration of long-lived minor actinides (MA). The predictions depend on the accuracy of the nuclear data used. There are several evaluations for actinide nuclear data, produced based on state-of-the-art procedures, but substantial deviations persist among them. The effect of spread in the MA nuclear data over a few recent evaluations, on the predicted material and Doppler worths of the FBR model, has been estimated and presented in this paper.