2013 Fiscal Year Final Research Report
Experimental analysis of MHD modes and their interactions for burning high-beta plasmas
| Project/Area Number |
23760818
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
MATSUNAGA Go 独立行政法人日本原子力研究開発機構, 核融合研究開発部門 那珂核融合研究所, 研究副主幹 (10391260)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 核燃焼高圧力プラズマ / 磁気流体不安定性 / 高エネルギーイオン / 周辺局在化モード |
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| Research Abstract |
The purpose of this study is to clarify physics and interaction mechanism of pressure-driven MHD modes and energetic-ion-driven MHD modes for future burning high-beta plasmas. In particular, the edge localized mode (ELM) triggering by energetic-ion-driven mode (EWM) is focused. Based on data analyses of JT-60 and DIII-D experiments, we have found that energetic-ions transported to edge region by EWM can affect ELM stability. Moreover, active MHD diagnostic and analysis of axisymmetric mode are conducted. These progressed comprehensive understanding of pressure and energetic-ion driven MHD modes.
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