| Effects of Dual-Electrode Biasing on Er in a Toroidal Plasma |
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| 作者姓名： | 陆荣华 潘阁生 王之江 闻一之 刘万东 万树德 俞昌旋 王俊 肖德龙 许敏 |
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| 作者单位： | DepartmentofModernPhysics,UniversityofScienceandTechnologyofChina,Hefei230026 |
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| 摘 要： | Two externally biased electrodes were inserted into the plasma on the KT-5C tokamak to test the effects on modifying the radial electric field Er, other than single biasing. Using various combinations of biasing voltage,the influences of double biasing are compared with the single biasing. It turns out that the effect of dual-biasing is also effective as a single one, but the outer electrode seems to be shielded by the inner one and show less influence. The results clearly show that the radial electric field Er changed by external biasing is intrinsically an effect localized at the edge of the plasma, which is caused by the electrode induced radial current; and dualelectrode biasing using the method similar to the single biasing seems not to be able to increase more distinctly the peaking effect on Er than the single biasing.
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| 关 键 词： | 电极偏压 环形等离子体 KT-5C托卡马克 信号处理 |
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