Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak
In the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions. A fusion product derived from the deuterium–deuterium (D−D) fusion reaction, whose spectral peak matches the fundamental cy...
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| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
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| Online Access: | https://doi.org/10.1088/1741-4326/ad80ac |
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| author | Huapeng Zhang Lunan Liu Wei Zhang Xuan Sun Xinjun Zhang Zhengshuyan Wang Zelin Xu Jiadong Zhang Weijian Qin Liuxin Li Yuhao Jiang Sichun Qiu Chengming Qin Guanghui Zhu Yongxin Zhu Kai Zhang Tao Jin Zhiping Li |
| author_facet | Huapeng Zhang Lunan Liu Wei Zhang Xuan Sun Xinjun Zhang Zhengshuyan Wang Zelin Xu Jiadong Zhang Weijian Qin Liuxin Li Yuhao Jiang Sichun Qiu Chengming Qin Guanghui Zhu Yongxin Zhu Kai Zhang Tao Jin Zhiping Li |
| author_sort | Huapeng Zhang |
| collection | DOAJ |
| description | In the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions. A fusion product derived from the deuterium–deuterium (D−D) fusion reaction, whose spectral peak matches the fundamental cyclotron frequency of the tritium ions ( ω _CT ) in the plasma edge near the last closed flux surface, was observed using the ion cyclotron range of frequency (ICRF) antenna-based diagnostic system at the plasma boundary on the low field side in the EAST. In this study, we present the first observation of ICE with frequency matching at the plasma boundary. The excitation position of ICE is approximately R = 2.29 m on EAST, and we find that ICE is easier to excite below a certain threshold of plasma radiation. To investigate the excitation mechanism of ICE, we obtained the tritium ion distribution via the TRANSP/Fusion Products Model code and used it to explain the excitation mechanism of ICE. The given distribution has a bump-on tail structure in the energy direction and anisotropy in the pitch angle direction. In addition, we explain why high-energy tritium ions can reach and accumulate at the plasma boundary. It is important to study ICE because ICE can help distinguish the species of fusion-product ions, which can also help monitor the fusion alpha ions in large fusion devices, such as CFETR, DEMO, and ITER. |
| format | Article |
| id | doaj-art-aecfaef8b21a436a9ac057101aea8329 |
| institution | Kabale University |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-aecfaef8b21a436a9ac057101aea83292025-01-28T12:21:50ZengIOP PublishingNuclear Fusion0029-55152025-01-0165202605710.1088/1741-4326/ad80acResearch on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting TokamakHuapeng Zhang0Lunan Liu1https://orcid.org/0000-0001-5694-7031Wei Zhang2https://orcid.org/0000-0002-5951-6779Xuan Sun3https://orcid.org/0000-0002-8338-3654Xinjun Zhang4Zhengshuyan Wang5https://orcid.org/0009-0001-2270-6122Zelin Xu6Jiadong Zhang7Weijian Qin8Liuxin Li9Yuhao Jiang10Sichun Qiu11https://orcid.org/0009-0002-3642-6807Chengming Qin12Guanghui Zhu13https://orcid.org/0000-0002-0354-4906Yongxin Zhu14Kai Zhang15Tao Jin16Zhiping Li17Department of Plasma Physics and Fusion Engineering, School of Nuclear Science and Technology, University of Science and Technology of China , Hefei 230026, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaDepartment of Plasma Physics and Fusion Engineering, School of Nuclear Science and Technology, University of Science and Technology of China , Hefei 230026, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaDepartment of Plasma Physics and Fusion Engineering, School of Nuclear Science and Technology, University of Science and Technology of China , Hefei 230026, ChinaDepartment of Plasma Physics and Fusion Engineering, School of Nuclear Science and Technology, University of Science and Technology of China , Hefei 230026, ChinaDepartment of Plasma Physics and Fusion Engineering, School of Nuclear Science and Technology, University of Science and Technology of China , Hefei 230026, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences , Hefei 230031, ChinaIn the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions. A fusion product derived from the deuterium–deuterium (D−D) fusion reaction, whose spectral peak matches the fundamental cyclotron frequency of the tritium ions ( ω _CT ) in the plasma edge near the last closed flux surface, was observed using the ion cyclotron range of frequency (ICRF) antenna-based diagnostic system at the plasma boundary on the low field side in the EAST. In this study, we present the first observation of ICE with frequency matching at the plasma boundary. The excitation position of ICE is approximately R = 2.29 m on EAST, and we find that ICE is easier to excite below a certain threshold of plasma radiation. To investigate the excitation mechanism of ICE, we obtained the tritium ion distribution via the TRANSP/Fusion Products Model code and used it to explain the excitation mechanism of ICE. The given distribution has a bump-on tail structure in the energy direction and anisotropy in the pitch angle direction. In addition, we explain why high-energy tritium ions can reach and accumulate at the plasma boundary. It is important to study ICE because ICE can help distinguish the species of fusion-product ions, which can also help monitor the fusion alpha ions in large fusion devices, such as CFETR, DEMO, and ITER.https://doi.org/10.1088/1741-4326/ad80acICEMCItritium ionsEAST |
| spellingShingle | Huapeng Zhang Lunan Liu Wei Zhang Xuan Sun Xinjun Zhang Zhengshuyan Wang Zelin Xu Jiadong Zhang Weijian Qin Liuxin Li Yuhao Jiang Sichun Qiu Chengming Qin Guanghui Zhu Yongxin Zhu Kai Zhang Tao Jin Zhiping Li Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak Nuclear Fusion ICE MCI tritium ions EAST |
| title | Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak |
| title_full | Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak |
| title_fullStr | Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak |
| title_full_unstemmed | Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak |
| title_short | Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak |
| title_sort | research on ion cyclotron emission driven by deuterium deuterium fusion produced tritium ions on the experimental advanced superconducting tokamak |
| topic | ICE MCI tritium ions EAST |
| url | https://doi.org/10.1088/1741-4326/ad80ac |
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