BENCHMARK RESULTS OF BURN-UP CALCULATION FOR LWR NEXT GENERATION FUELS

Burn-up calculation benchmark has been carried out for the LWR fuels aiming at high burn-up up to 70GWd/t with UO2 and MOX. This paper shows the comparison results for the burn-up dependence of k-infinity, void and temperature reactivities, and atomic number densities of major nuclides.