Evaluation of photonuclear data library by taking into account new experimental data and evaluation methodologies

新しい実験データと評価手法を考慮した光核反応データライブラリの評価

岩本 信之  

Iwamoto, Nobuyuki

The contribution to the IAEA photonuclear data library was summarized. The new evaluations of 30 isotopes with mainly atomic number of 21 to 29 were made by the CCONE code so as to be replaced from JENDL/PD-2016. The nuclear data of total 140 isotopes evaluated by CCONE are the same as those of JENDL/PD-2016 below 140 MeV, but the energy limit is extended to 200 MeV. For 33 light nuclides the nuclear data can be taken from JENDL/PD-2016. Using new data measured at NewSUBARU facility, nuclear data evaluations for Y, La and Tb were carried out and compared with other experimental and Varlamov's data. The nuclear data on Bi were evaluated on the basis of the neutron production cross sections measured by Gheorghe et al. (2017). The average energies of emitted neutrons were derived from the results of the present evaluation, and closely checked with those of Gheorghe et al. (2017). The features found by the comparison between evaluated and measured average neutron energies are reported in the meeting.