Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV
In high-intensity proton accelerator facilities, it is crucial to evaluate the damage of beam-interception materials and accelerator components, such as a superconducting magnet coil and cavity. The displacement per atom (dpa) is used as a damage index derived by integrating the particle flux and th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/10/epjconf_nd2023_05001.pdf |
| _version_ | 1797807650481635328 |
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| author | Shin-ichiro Meigo Nakano Keita Matsuda Hiroki Iwamoto Yosuke Yoshida Makoto |
| author_facet | Shin-ichiro Meigo Nakano Keita Matsuda Hiroki Iwamoto Yosuke Yoshida Makoto |
| author_sort | Shin-ichiro Meigo |
| collection | DOAJ |
| description | In high-intensity proton accelerator facilities, it is crucial to evaluate the damage of beam-interception materials and accelerator components, such as a superconducting magnet coil and cavity. The displacement per atom (dpa) is used as a damage index derived by integrating the particle flux and the displacement cross section. Although the dpa is employed as the standard, the experimental data of displacement cross section are scarce for a proton in the energy region above 20 MeV. To obtain the data for superconducting materials for high-intensity accelerators and magnets, we measured the displacement cross section of Nb for proton irradiation with a kinetic energy range between 0.4 and 3 GeV at J-PARC. The present experimental results were compared with the calculation of PHITS code and Karlsruhe Institute of Technology (KIT) evaluation using both NorgerttRobinson-Torrens (NRT) and the athermal recombination corrected dpa (arc-dpa) models. The experiment showed that the widely utilized NRT model overestimates the cross section by 50%. It is also found that the arc-dpa model shows remarkably good agreement with the present data. |
| first_indexed | 2024-03-13T06:25:49Z |
| format | Article |
| id | doaj.art-7960df92a6d945f29774d1db5b1c48ec |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-03-13T06:25:49Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-7960df92a6d945f29774d1db5b1c48ec2023-06-09T09:16:16ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012840500110.1051/epjconf/202328405001epjconf_nd2023_05001Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeVShin-ichiro Meigo0Nakano Keita1Matsuda Hiroki2Iwamoto Yosuke3Yoshida Makoto4J-PARC Center Japan Atomic Energy Agency (JAEA)J-PARC Center Japan Atomic Energy Agency (JAEA)J-PARC Center Japan Atomic Energy Agency (JAEA)Nuclear Science and Engineering Center Japan Atomic Energy Agency (JAEA)J-PARC Center High Energy Accelerator Research Organization (KEK)In high-intensity proton accelerator facilities, it is crucial to evaluate the damage of beam-interception materials and accelerator components, such as a superconducting magnet coil and cavity. The displacement per atom (dpa) is used as a damage index derived by integrating the particle flux and the displacement cross section. Although the dpa is employed as the standard, the experimental data of displacement cross section are scarce for a proton in the energy region above 20 MeV. To obtain the data for superconducting materials for high-intensity accelerators and magnets, we measured the displacement cross section of Nb for proton irradiation with a kinetic energy range between 0.4 and 3 GeV at J-PARC. The present experimental results were compared with the calculation of PHITS code and Karlsruhe Institute of Technology (KIT) evaluation using both NorgerttRobinson-Torrens (NRT) and the athermal recombination corrected dpa (arc-dpa) models. The experiment showed that the widely utilized NRT model overestimates the cross section by 50%. It is also found that the arc-dpa model shows remarkably good agreement with the present data.https://www.epj-conferences.org/articles/epjconf/pdf/2023/10/epjconf_nd2023_05001.pdf |
| spellingShingle | Shin-ichiro Meigo Nakano Keita Matsuda Hiroki Iwamoto Yosuke Yoshida Makoto Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV EPJ Web of Conferences |
| title | Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV |
| title_full | Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV |
| title_fullStr | Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV |
| title_full_unstemmed | Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV |
| title_short | Measurement of displacement cross-sections of Nb irradiated by protons with kinetic energy range between 0.4 and 3 GeV |
| title_sort | measurement of displacement cross sections of nb irradiated by protons with kinetic energy range between 0 4 and 3 gev |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/10/epjconf_nd2023_05001.pdf |
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