Study on transmutation efficiency of the VVER-1000 fuel assembly with different minor actinide compositions

The comparative analysis was conducted for the two models of minor actinide loading in the LEU fuel assembly: homogeneous mixing in the UGD (Uranium-Gadolinium) pins and coating a thin layer to the UGD pins. The parameters to be analysed and compared include the reactivity of the LEU fuel assembly versus burnup and the transmutation of minor actinide nuclides when loading different minor actinide vectors into the LEU fuel assembly.
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Study on transmutation efficiency of the VVER-1000 fuel assembly with different minor actinide compositions