Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas
A scenario of ion cyclotron range of frequency (ICRF) wave injection from a top launcher is proposed as an efficient and direct heating method for thermal deuterium ions in deuterium–tritium tokamak plasmas. Positioned between the tritium cyclotron layer and ion–ion hybrid layer, the top launcher al...
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| Format: | Article |
| 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/adf569 |
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| author | Jungpyo Lee Nicola Bertelli John Wright Syun’ichi Shiraiwa Roberto Bilato Paul Bonoli |
| author_facet | Jungpyo Lee Nicola Bertelli John Wright Syun’ichi Shiraiwa Roberto Bilato Paul Bonoli |
| author_sort | Jungpyo Lee |
| collection | DOAJ |
| description | A scenario of ion cyclotron range of frequency (ICRF) wave injection from a top launcher is proposed as an efficient and direct heating method for thermal deuterium ions in deuterium–tritium tokamak plasmas. Positioned between the tritium cyclotron layer and ion–ion hybrid layer, the top launcher allows effective wave penetration to the ion–ion hybrid layer and enables significant power transfer to thermal deuterium. This is achieved through favorable wave polarization for fundamental cyclotron damping. There is a Doppler broadening around the cyclotron resonance and this overlaps with the ion–ion hybrid layer. Low toroidal mode numbers and ion temperature in the range of 5–20 keV are favorable for enhancing the main ion damping relative to electron damping. In contrast to the neutral beam injection, which penetration strongly depends on machine size and plasma density, the proposed ICRF-based direct ion heating scenario is shown to be scalable and applicable to both larger and smaller tokamak devices within practical constraints. |
| format | Article |
| id | doaj-art-17a0b1dcd9f54b8bb8a8c97a58d9655b |
| institution | Kabale University |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-17a0b1dcd9f54b8bb8a8c97a58d9655b2025-08-20T04:01:08ZengIOP PublishingNuclear Fusion0029-55152025-01-0165909600610.1088/1741-4326/adf569Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmasJungpyo Lee0https://orcid.org/0000-0002-4382-4515Nicola Bertelli1https://orcid.org/0000-0002-9326-7585John Wright2Syun’ichi Shiraiwa3https://orcid.org/0000-0001-5249-0441Roberto Bilato4https://orcid.org/0000-0002-0578-9333Paul Bonoli5Hanyang University , Seoul, Korea, Republic Of; Princeton Plasma Physics Laboratory , Princeton, NJ, United States of AmericaPrinceton Plasma Physics Laboratory , Princeton, NJ, United States of AmericaMIT Plasma Science and Fusion Center , Cambridge, MA, United States of AmericaPrinceton Plasma Physics Laboratory , Princeton, NJ, United States of AmericaMax Planck Institute for Plasma Physics , Garching, GermanyMIT Plasma Science and Fusion Center , Cambridge, MA, United States of AmericaA scenario of ion cyclotron range of frequency (ICRF) wave injection from a top launcher is proposed as an efficient and direct heating method for thermal deuterium ions in deuterium–tritium tokamak plasmas. Positioned between the tritium cyclotron layer and ion–ion hybrid layer, the top launcher allows effective wave penetration to the ion–ion hybrid layer and enables significant power transfer to thermal deuterium. This is achieved through favorable wave polarization for fundamental cyclotron damping. There is a Doppler broadening around the cyclotron resonance and this overlaps with the ion–ion hybrid layer. Low toroidal mode numbers and ion temperature in the range of 5–20 keV are favorable for enhancing the main ion damping relative to electron damping. In contrast to the neutral beam injection, which penetration strongly depends on machine size and plasma density, the proposed ICRF-based direct ion heating scenario is shown to be scalable and applicable to both larger and smaller tokamak devices within practical constraints.https://doi.org/10.1088/1741-4326/adf569top launchertokamakion cyclotron range of frequencymain thermal ion heatingdeuterium-tritium plasmas |
| spellingShingle | Jungpyo Lee Nicola Bertelli John Wright Syun’ichi Shiraiwa Roberto Bilato Paul Bonoli Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas Nuclear Fusion top launcher tokamak ion cyclotron range of frequency main thermal ion heating deuterium-tritium plasmas |
| title | Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas |
| title_full | Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas |
| title_fullStr | Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas |
| title_full_unstemmed | Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas |
| title_short | Feasibility of main thermal ion heating by ICRF waves using a top launcher in a tokamak with deuterium–tritium plasmas |
| title_sort | feasibility of main thermal ion heating by icrf waves using a top launcher in a tokamak with deuterium tritium plasmas |
| topic | top launcher tokamak ion cyclotron range of frequency main thermal ion heating deuterium-tritium plasmas |
| url | https://doi.org/10.1088/1741-4326/adf569 |
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