Analysis of Recent post irradiation tests by Japanese and French burnup analysis code systems

Benchmark problem based on Japanese Post Irradiation Experiment (PIE) data was analyzed by Japanese burnup analysis code and French one under the cooperative research program between the Japanese University Association (JUA) in Japan and Commissariat a l’Enegie Atomique (CEA) in France. Significant discrepancies over 10% were found between the Japanese and French results for ²³⁸Pu, ²⁴³Am, ²⁴⁴Cm, ¹²³Sb, ^l54Eu, ¹³⁴Cs and ^l44Ce. It is supposed that the difference of C/E for ²⁴³Am and ²⁴⁴Cm between Japanese results and French ones is due to the (n, gamma) reaction of ^242mAm. For ¹²⁵Sb and ¹⁵⁴Eu, the C/E values are improved by using new cross section and fission yield libraries.