Problem on gammas emitted in capture reaction of TENDL-2019 and JEFF-3.3

Previously we had pointed that energy distribution data for secondary gammas from the capture reaction of a lot of nuclei in TENDL-2017 had no high-energy gamma peaks. Here we examined whether secondary gamma energy distribution data of the capture reaction in the latest nuclear data libraries had high-energy gamma peaks or not. As a result, we found that a lot of nuclei in TENDL-2019 still did not have high-energy gamma peaks in secondary gamma spectra from the capture reaction and several nuclei in JEFF-3.3 also did not, while other nuclear data libraries such as JENDL-4.0 and ENDF/B-VIII.0 had those peaks. This problem causes not only drastically small damage energy production cross sections for radiation damage calculations at incident neutron energies below a few keV but also smaller gamma productions in shielding calculations. The problematic energy distribution data for secondary gammas in TENDL-2019 and JEFF-3.3 should be revised. (author)