| Project/Area Number |
26630469
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Iio Shunji 東京工業大学, 科学技術創成研究院, 教授 (90272723)
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| Co-Investigator(Kenkyū-buntansha) |
筒井 広明 東京工業大学, 科学技術創成研究院, 准教授 (20227440)
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| Research Collaborator |
HATAKEYAMA Shoichi 東京工業大学, 大学院・創造エネルギー専攻
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | トカマク / プラズマ着火 / MHD平衡 / 磁気面 / 摂動磁場コイル / ECR / 電流分布 / 位置安定性 / 位置不安定性 / MHD不安定性 |
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| Outline of Final Research Achievements |
Since the flux swing speed of future tokamak reactors with superconducting coils is limited, we aimed to reduce the one-turn loop voltage by exploiting the closed magnetic surfaces formed with external magnetic field coils. We mounted perturbation coils on the vacuum chamber of the existing small tokamak in our laboratory so that closed magnetic surfaces can be formed in combination with vertical magnetic field coils.
Although the changes in the one-turn loop voltage were not evident with and without closed magnetic surfaces due to insufficient correction of horizontal error magnetic fields, plasma breakdown without the RF power of electron cyclotron resonance was demonstrated to be possible with closed magnetic surfaces.
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