| Issue |
EPJ Web Conf.
Volume 322, 2025
7th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR*24)
|
|
|---|---|---|
| Article Number | 10004 | |
| Number of page(s) | 3 | |
| Section | Nuclear Data | |
| DOI | https://doi.org/10.1051/epjconf/202532210004 | |
| Published online | 14 March 2025 | |
https://doi.org/10.1051/epjconf/202532210004
Photonuclear reaction cross-section evaluation of 181Ta and 209Bi considering experimental double differential cross-section data
1 Department of Accelerator Science, Graduate University for Advanced Studies, Shonan Village, Hayama, Kanagawa 240-0193, Japan
2 Nuclear Data Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
3 Radiation Science Center, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
* Corresponding author: ngthuong@post.kek.jp
Published online: 14 March 2025
Experimental data of photoneutron double differential cross-sections (DDXs) on 181Ta and 209Bi for photon energies of 13 MeV and 17 MeV were incorporated into the photonuclear data evaluation using the CCONE code system and reaction cross-section data from the EXFOR database. By increasing the preequilibrium photoneutron emissions through a reduction in single-particle state density of neutron for the target nuclei within the exciton model, the evaluation results, including the reaction cross-sections and DDXs for 13 MeV photons, show good agreement with the corresponding experimental data. However, the evaluation results underestimate the experimental DDXs for 17 MeV photon energy.
© The Authors, published by EDP Sciences, 2025
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