EVALUATION OF ISOTOPIC MEASUREMENTS AND BURN-UP VALUE OF SAMPLES GU3, GU3' AND BM5, BM5' OF ARIANE PROJECT

摘要

Estimation of the bum-up value and the corresponding isotopic composition of the nuclear fuel are the most important subjects for criticality analysis and source term estimation in the framework of spent fuel management. The only practical way to estimate the fuel composition and bum-up value is the isotopic depletion calculation with well qualified codes and nuclear data. Such qualification requires the availability of well evaluated experimental measurements to be used as benchmarks. The purpose of this study is evaluation of the isotopic measurements of GU3 (GU3') and BM5 (BM5') samples of ARIANE project in order to judge their adequacy for qualification of the codes and libraries. Additionally the sensitivity analyses to manufacturing and operation parameters are performed in order to obtain the uncertainty due to both types of parameters.