Terms of Use for ACE-J50

License (2-clause BSD license) and Copyright

Copyright 2022, Japan Atomic Energy Agency (JAEA) All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

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ACE-J50

JENDL-5 ACE library (neutron induced) Release Date: 2022/12/9

These ACE libraries were generated using FRENDY Ver.2.01 and the modified version of NJOY2016.65.
The HEATR module of NJOY2016.65 was used for the calculation of the heating cross section.
FRENDY was used for the other processes.
These ACE files were generated using nuclear data files that reflected updates up to upd-7 released in May 2022.
The XSDIR file was prepared at each temperature.
Please use the XSDIR file(including all temperatures and TSL data) if you want to use all temperature data and thermal scattering law (TSL) data.

Modification of ACE file

JENDL-5 ACE library (Thermal scattering law data: TSL) Release Date: 2022/12/9

These ACE libraries were generated using FRENDY Ver.2.01.04.
The details of the TSL data (temperature, material name, suffix ID, and so on) are written in the TSL data list.

JENDL-5 ACE library (Charged particle induced) Release Date: 2022/12/9

This ACE library was generated using the modified version of NJOY2016.65.

Modification of ACE file

JENDL-5 ACE library (photo-nuclear) Release Date: 2022/12/9

This ACE library was generated using the modified version of NJOY2016.67.

JENDL-5 ACE library (photo-atomic) Release Date: 2022/12/9

This ACE library was generated using the modified version of NJOY2016.65.

Modification of NJOY2016.65 and NJOY2016.67 for the ACE file generation using JENDL-5

The source files were modified to generate ACE files using JENDL-5.
The details of the modification were written in the following PDF files.


Old ACE library

JENDL-5 ACE Library (Up to 20 MeV, T=300 K, For neutronics calculation)

This ACE library was generated by FRENDY Ver.2.00.
The data size of this ACE library is very large (compressed file: 24 GB, decompressed file: 74 GB).
Please remove unnecessary nuclear data files and TSL data files if you want to reduce the data size.

Precautions for use of this ACE library


(1) Data for the KERMA factor are not included in this ACE library.
(2) This ACE library cannot be used for the neutron-photon coupling calculation since there were problems in the processing of the secondary gamma.

Please use JENDL-5 ACE libraries (neutron induced) in ACE-J50 to use these data.