<RESEARCH REPORT>MEASUREMENT OF SMALL-SCALE DENSITY FLUCTUATION IN JIPP T-II PLASMA BY MILLIMETER AND SUB-MILLIMETER WAVE SCATTERING
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概要
- 論文の詳細を見る
The small-space density fluctuations have been studied by both millimeter (2mm) and sub-millimeter (337μm) wave scattering techniques in JIPP T-II plasmas. Experiments were performed in two types of plasma : tokamak and stellarator plasmas. In both plasmas, the density fluctuations are localized in outer region of the plasma column, and show the characteristics of the drift wave mode turbulence. The density fluctuation level is n^^∿/n_o ≃ 1-1.5% around the plasma edge, and this value is inversely proportional to the mean electron density. Further, the dependence of the fluctuation level on the plasma parameters is studied and compared with the scaling law of the energy confinement time of the plasma. The diffusion coefficient estimated from the density fluctuation is about one third of the global diffusion coefficient.
- 核融合科学研究所の論文
著者
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Tetsuka T.
Research Information Center Institute Of Plasma Physics Nagoya University
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Kawahata K.
Research Information Center Institute Of Plasma Physics Nagoya University
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FUJITA J.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Nishizawa A.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Sakai T.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Mase A.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Tsukishima T.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Mase A.
Institute of Plasma Physics, Nagoya University
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Tsukishima T.
Research Information Center Institute Of Plasma Physics Nagoya University:faculty Of Engineering Nag
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Fujita J.
Research Information Center Institute Of Plasma Physics Nagoya University
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Tsukishima T.
Research Information Center Institute Of Plasma Physics Nagoya University:department Of Electrical E
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Shoji T.
Institute Of Plasma Physics Nagoya University
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Mase A.
Institute Of Plasma Physics Nagoya University
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Mase A.
Research Information Center Institute Of Plasma Physics Nagoya University:faculty Of Engineering Nagoya University
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