Density Modulation Experiments on HT-7 Tokamak
Density Modulation Experiments on HT-7 Tokamak
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DOI：
10.1088/0256-307x/21/12/038
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发表时间：
2004-12
影响因子：
3.5
通讯作者：
K. Tanaka;Gao Xiang;Jie Yin-xian;R. Sakamoto;K. Toi
中科院分区：
文献类型：
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作者：
K. Tanaka;Gao Xiang;Jie Yin-xian;R. Sakamoto;K. Toi
在HT-7欧姆放电上成功地进行了密度调制实验，以研究粒子输运系数：扩散系数D和对流速度V。在低密度（1.5×1019 m−3）和高密度（3×1019 m−3）区域研究了粒子输运。在假设D和V（r）=（r/a）V0为空间常数的情况下，低密度和高密度等离子体的D分别为0.42 m2 /s和0.17 m2/s，V分别为4.7 m/s（向外）和1.6 m/s（向内）。
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 (1.5×1019 m−3) and high (3×1019 m−3) density regimes. The clear differences are observed that D is 0.42 m2 /s and 0.17 m2/s, V is 4.7 m/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.