| Density Modulation Experiments on HT-7 Tokamak |
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| 摘 要： |
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| 关 键 词： | 密度调制 欧姆放电 传输系数 等离子体 |
Density Modulation Experiments on HT-7 Tokamak |
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| Authors: | K Tanaka GAO Xiang JIE Yin-Xian R Sakamoto K Toi |
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| Affiliation: | National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Japan
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 |
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| Abstract: | Density modulation experiments are successfully conducted on HT-7 ohmic discharge to investigate particle transport coefficients: diffusion coefficients D and convection velocity V. The particle transport is studied at low (1.5×1019m-3) and high (3×1019 m-3) density regimes. The clear differences are observed that D is 0.42m2/s and 0.17m2/s, V is 4.7m/s (outward) and 1.6 m/s (inward) for low and high density plasmas respectively, where spatially constant D and V(r) = (r/a)V0 were assumed for the analysis. |
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| Keywords: | 52 25 Fi 52 55 Fa 52 50 Sw |
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