Photon energy dependence of photoneutron production from heavy targets
The double differential cross-sections (DDXs) of photoneutron production via the photonuclear reaction on tantalum, tungsten, and bismuth for 13 and 17 MeV linearly polarized photon beams were measured using the time-of-flight method at the NewSUBARU-BL01 facility. Polarized photons were obtained by...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/02/epjconf_nrm2023_07004.pdf |
| _version_ | 1827311593361244160 |
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| author | Nguyen Thuong T.H. Sanami Toshiya Yamazaki Hirohito Lee Eunji Sugihara Kenta Itoga Toshiro Kirihara Yoichi Miyamoto Shuji Hashimoto Satoshi Asano Yoshihiro |
| author_facet | Nguyen Thuong T.H. Sanami Toshiya Yamazaki Hirohito Lee Eunji Sugihara Kenta Itoga Toshiro Kirihara Yoichi Miyamoto Shuji Hashimoto Satoshi Asano Yoshihiro |
| author_sort | Nguyen Thuong T.H. |
| collection | DOAJ |
| description | The double differential cross-sections (DDXs) of photoneutron production via the photonuclear reaction on tantalum, tungsten, and bismuth for 13 and 17 MeV linearly polarized photon beams were measured using the time-of-flight method at the NewSUBARU-BL01 facility. Polarized photons were obtained by the Laser Compton backscattering (LCS) technique. Two distinct components were observed on the spectra: the lowenergy component up to 4 MeV and the high-energy above 4 MeV. The angular distribution of the low-energy component was isotropic, whereas the high-energy was distributed anisotropically and influenced by the angle between direction of photon polarization and neutron emission, especially for 17 MeV photon energy. These phenomena were similar to those of 197Au target observed in the previous studies. The low-energy neutron distributions at 13 and 17 MeV photon energies were almost identical for all three targets. The DDX energy integration was calculated and compared among the three targets for two-photon energies. Given the horizontal polarization (plane parallel to the x-axis) of the incident photons, the emission angles of 90° on the x-axis and y-axis recorded the maximum and minimum photoneutron yield, respectively. The differences between these two positions were minor for 181Ta and natW at 13 MeV photon energy and noticeable for other cases. An underestimation of the TENDL nuclear data library was observed on the photoneutron DDXs compared to the experimental results for 181Ta and 209Bi. |
| first_indexed | 2024-04-24T20:22:26Z |
| format | Article |
| id | doaj.art-2fc66b61fdf34bb880004aebb61ad005 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-24T20:22:26Z |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-2fc66b61fdf34bb880004aebb61ad0052024-03-22T08:03:11ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-012920700410.1051/epjconf/202429207004epjconf_nrm2023_07004Photon energy dependence of photoneutron production from heavy targetsNguyen Thuong T.H.0Sanami Toshiya1Yamazaki Hirohito2Lee Eunji3Sugihara Kenta4Itoga Toshiro5Kirihara Yoichi6Miyamoto Shuji7Hashimoto Satoshi8Asano Yoshihiro9SOKENDAI, Shonan VillageSOKENDAI, Shonan VillageSOKENDAI, Shonan VillageSOKENDAI, Shonan VillageSOKENDAI, Shonan VillageJASRIJAEAILE, Osaka UniversityUniversity of HyogoKEKThe double differential cross-sections (DDXs) of photoneutron production via the photonuclear reaction on tantalum, tungsten, and bismuth for 13 and 17 MeV linearly polarized photon beams were measured using the time-of-flight method at the NewSUBARU-BL01 facility. Polarized photons were obtained by the Laser Compton backscattering (LCS) technique. Two distinct components were observed on the spectra: the lowenergy component up to 4 MeV and the high-energy above 4 MeV. The angular distribution of the low-energy component was isotropic, whereas the high-energy was distributed anisotropically and influenced by the angle between direction of photon polarization and neutron emission, especially for 17 MeV photon energy. These phenomena were similar to those of 197Au target observed in the previous studies. The low-energy neutron distributions at 13 and 17 MeV photon energies were almost identical for all three targets. The DDX energy integration was calculated and compared among the three targets for two-photon energies. Given the horizontal polarization (plane parallel to the x-axis) of the incident photons, the emission angles of 90° on the x-axis and y-axis recorded the maximum and minimum photoneutron yield, respectively. The differences between these two positions were minor for 181Ta and natW at 13 MeV photon energy and noticeable for other cases. An underestimation of the TENDL nuclear data library was observed on the photoneutron DDXs compared to the experimental results for 181Ta and 209Bi.https://www.epj-conferences.org/articles/epjconf/pdf/2024/02/epjconf_nrm2023_07004.pdf |
| spellingShingle | Nguyen Thuong T.H. Sanami Toshiya Yamazaki Hirohito Lee Eunji Sugihara Kenta Itoga Toshiro Kirihara Yoichi Miyamoto Shuji Hashimoto Satoshi Asano Yoshihiro Photon energy dependence of photoneutron production from heavy targets EPJ Web of Conferences |
| title | Photon energy dependence of photoneutron production from heavy targets |
| title_full | Photon energy dependence of photoneutron production from heavy targets |
| title_fullStr | Photon energy dependence of photoneutron production from heavy targets |
| title_full_unstemmed | Photon energy dependence of photoneutron production from heavy targets |
| title_short | Photon energy dependence of photoneutron production from heavy targets |
| title_sort | photon energy dependence of photoneutron production from heavy targets |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/02/epjconf_nrm2023_07004.pdf |
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