JENDL-5 validation, 1; Benchmark tests with the ICSBEP handbook

Nagaya, Yasunobu  ; Tada, Kenichi   

The latest version of Japanese Evaluated Nuclear Data Library, JENDL-5, was released in December of 2021. To investigate the prediction accuracy of JENDL-5 for criticality of reactor cores, we performed benchmark tests by using the International Criticality Safety Benchmark Evaluation Project (ICSBEP) handbook. Judging from the overall results, we confirmed that JENDL-5 gives the better results than JENDL-4.0.