Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS
Multi-turn charge-exchange beam injection is the key technique to achieve high-intensity proton beam accelerators. In J-PARC RCS, 400-MeV H- beams from LINAC are injected into stripper foils such that most of the beams are converted into protons. The stripper foils are irradiated not only with the i...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2020/05/epjconf_intds2018_01002.pdf |
| _version_ | 1818613821465427968 |
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| author | Yoshimoto Masahiro Okabe Kota Kinsho Michikazu |
| author_facet | Yoshimoto Masahiro Okabe Kota Kinsho Michikazu |
| author_sort | Yoshimoto Masahiro |
| collection | DOAJ |
| description | Multi-turn charge-exchange beam injection is the key technique to achieve high-intensity proton beam accelerators. In J-PARC RCS, 400-MeV H- beams from LINAC are injected into stripper foils such that most of the beams are converted into protons. The stripper foils are irradiated not only with the injected H- beams but also with the protons circulating during the beam injection period. The high energy and intense beam irradiation into the foil generates secondary neutrons and protons via nuclear reactions. These secondary particles cause high residual activation around the stripper foils. Therefore, an activation analysis method that uses sample pieces is required to investigate the secondary particle. Furthermore, a new experimental system to measure secondary particles from the foil was installed at the L3BT 100BD line. Initial testing of the system has been completed, and beam testing will commence in October 2018. |
| first_indexed | 2024-12-16T16:08:12Z |
| format | Article |
| id | doaj.art-001a18c4016741028e943cde1a542c64 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T16:08:12Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-001a18c4016741028e943cde1a542c642022-12-21T22:25:18ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012290100210.1051/epjconf/202022901002epjconf_intds2018_01002Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCSYoshimoto MasahiroOkabe KotaKinsho MichikazuMulti-turn charge-exchange beam injection is the key technique to achieve high-intensity proton beam accelerators. In J-PARC RCS, 400-MeV H- beams from LINAC are injected into stripper foils such that most of the beams are converted into protons. The stripper foils are irradiated not only with the injected H- beams but also with the protons circulating during the beam injection period. The high energy and intense beam irradiation into the foil generates secondary neutrons and protons via nuclear reactions. These secondary particles cause high residual activation around the stripper foils. Therefore, an activation analysis method that uses sample pieces is required to investigate the secondary particle. Furthermore, a new experimental system to measure secondary particles from the foil was installed at the L3BT 100BD line. Initial testing of the system has been completed, and beam testing will commence in October 2018.https://www.epj-conferences.org/articles/epjconf/pdf/2020/05/epjconf_intds2018_01002.pdf |
| spellingShingle | Yoshimoto Masahiro Okabe Kota Kinsho Michikazu Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS EPJ Web of Conferences |
| title | Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS |
| title_full | Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS |
| title_fullStr | Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS |
| title_full_unstemmed | Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS |
| title_short | Measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in J-PARC RCS |
| title_sort | measurement of radioactivity and evaluation of activated nuclides due to secondary particles produced in stripper foil in j parc rcs |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2020/05/epjconf_intds2018_01002.pdf |
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