| Project/Area Number |
18KK0410
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| Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Nagoya University |
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Principal Investigator |
Tanaka Hirohiko 名古屋大学, 未来材料・システム研究所, 准教授 (60609981)
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| Project Period (FY) |
2019 – 2023
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
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| Keywords | 非拡散的輸送 / 非接触プラズマ / Magnum-PSI / 揺動解析 / 静電プローブ / 高速カメラ / 再結合フロント / ダイバータプラズマ / MAGNUM-PSI |
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| Outline of Final Research Achievements |
In this international collaboration research, several measurement instruments were brought to the linear superconducting device Magnum-PSI (DIFFER in the Netherlands), which has high plasma parameters and magnetic field strength comparable to the ITER divertor region, and fluctuation data sets were obtained. We investigated the occurrence and transport characteristics of non-diffusive transport, which is amplified under “detached divertor condition” that is promising for reducing the heat load on the device wall. Similar phenomena were observed in several domestic devices with different parameter regions and magnetic field structures, indicating that such the phenomenon could occur in future fusion devices.
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| Academic Significance and Societal Importance of the Research Achievements |
現存する唯一のITER級ダイバータプラズマ模擬装置といえるMagnum-PSIにおいて、非接触プラズマ条件で増幅する非拡散的輸送現象の観測に成功した。特に弱磁場環境では、静電プローブと高速カメラの併用により詳細な輸送特性を明らかにした。本研究で整備した計測系は、DIFFER研究所における今後の関連研究の進展に寄与する。
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