2010 Fiscal Year Final Research Report
Effect of Resonant Magnetic Perturbation on MHD Instability in Toroidal Plasma
| Project/Area Number |
19360419
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
SAKAKIBARA Satoru National Institute for Fusion Science, ヘリカル研究部, 准教授 (90280594)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 巨視的不安定性 / MHD平衡 / 共鳴磁場 / ヘリカルプラズマ / 磁気島 |
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| Research Abstract |
Effect of resonant magnetic perturbation on MHD instabilities has been investigated in the Large Helical Device. When the external magnetic perturbation field was applied to the plasma temporally, the magnetic island was formed when the perturbation exceeds a threshold. Experiments in the different magnetic shear configurations suggest that the threshold increased with the strength of the magnetic shear. Also, it was clarified that the island width was quite larger than the prediction.
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