JENDL/DEU-2020: deuteron nuclear data library for design studies of accelerator-based neutron sources

ABSTRACT

Intensive fast neutron sources using deuteron accelerators have been proposed for various applications. To contribute to the design study of such neutron sources, a deuteron nuclear data library for ^6,7Li, ⁹Be, and ^12,13C up to 200 MeV, JENDL/DEU-2020 is developed. Evaluation of JENDL/DEU-2020 is performed by employing the code system DEURACS with particular attention to neutron production data. Toward the evaluation of JENDL/DEU-2020, some modifications are made to DEURACS. Validation of the library is performed through simulation with the Monte Carlo transport calculation codes. From the simulation, it is shown that calculation results based on JENDL/DEU-2020 reproduce measured neutron production data well in incident energies up to 200 MeV. The new library is expected to make a large contribution to diverse design studies of deuteron accelerator neutron sources.

KEYWORDS:

• Deuteron
• nuclear data
• double-differential cross section
• thick-target neutron yield
• accelerator-based neutron source

Acknowledgments

The authors wish to thank C. Konno for providing helpful information on the development of an ACE format file and on the calculation with the MCNP code. They are also grateful to S. Hashimoto for the fruitful discussion on the development of a Frag-Data format file.

Disclosure statement

No potential conflict of interest was reported by the authors.

Notes

1. In TENDL-2019, the latest version of TENDL series, the deuteron nuclear data for ${ }^{6,7}$Li are taken from ENDF/B-VII.1 and the data for ${ }^9$Be and ${ }^{12,13}$C are almost identical with those of TENDL-2017.

Additional information

Funding

This work was partially funded by JSPS KAKENHI Grant Number 19K15483 from Japan Society for the Promotion of Science.