2013 Fiscal Year Final Research Report
Visualization and quntification of the stochastic force in plasma turbulence
| Project/Area Number |
23656576
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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 | Kyushu University |
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Principal Investigator |
ZUSHI hideki 九州大学, 応用力学研究所, 教授 (20127096)
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| Project Period (FY) |
2011 – 2013
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| Keywords | ﾌﾟﾗｽﾞﾏ・核融合 / 自己組織化 / 偶然力 / 揺動確率密度分布 / 揺動高次ﾓｰﾒﾝﾄ法 / プラズマ回転 |
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| Research Abstract |
Visualization and quantification of the stochastic force in plasma turbulence have been investigated using fast camera imaging of plasma, Mach probes in the SOL and four HX arrays. The followings are achieved; 1) stochastic scaling law and gamma pdf of the SOL turbulence, 2) statistic law of magnetic pitch dependence of the coherent SOL turbulence, 3) development of the velocitometry for the SOL turbulence. Especially, the plasma flow measurements based on the Doppler shift spectroscopy for impurity ions, Mach probes for the SOL plasma, and velocitometry for fluctuations have been performed and it has been found that intrinsic rotation is triggered under the particular magnetic field configuration with strong positive curvature, and the rotation is the same as the plasma current. slab
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