Development of JENDL-5 based libraries for the SCALE code system, 1; Generation of the AMPX formatted library AMPX-J50

Nagaya, Yasunobu  ; Konno, Chikara  ; Tada, Kenichi   ; Yamaji, Kazuya*

The SCALE code system is a comprehensive modeling and simulation suite for nuclear safety analysis and design developed and maintained by ORNL. We developed AMPX-J50, which is the AMPX-formatted library based on JENDL-5, to enable neutronics analysis in this system using JENDL-5. This library was generated using the nuclear data processing code AMPX-6 in the SCALE code system. This library consists of three libraries: the continuous energy cross section library AMPX CE, the multi-group cross section library AMPX MG, and the covariance library AMPX COV. This presentation explains an overview of AMPX-J50 and the modifications of JENDL-5 files to generate this library.