| Original Articles |
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Generation of Radial Electric Field with Electrode Biasing |
| WANG Cheng;PAN Ge-Sheng;WEN Yi-Zhi;YU Chang-Xuan;WAN Shu-De;LIU Wan-Dong;WANG Zhi-Jiang;SUN Xuan |
| Department of Modern Physics, University of Science and
Technology of China, Hefei 230027 |
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| Cite this article: |
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WANG Cheng, PAN Ge-Sheng, WEN Yi-Zhi et al 2001 Chin. Phys. Lett. 18 257-259 |
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Abstract Time and space resolved measurements of the radial electric field (Er) have been conducted during the electrode biasing experiments on the KT-5C tokamak. The suppression of the turbulent transport with the change of Er induced by the biased electrode is observed. It is found that the poloidal flow contributes to the main part of the Er, and the change of the poloidal flow has a lead of about 20μs to the formation of Er. These observations suggest that a radial current, responding to an induced voltage on the electrode, drives a poloidal flow which in turn drives the radial electric field.
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| Keywords:
52.55.Fa
52.55.-s
52.35.Ra
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Published: 01 February 2001
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| PACS: |
52.55.Fa
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(Tokamaks, spherical tokamaks)
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52.55.-s
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(Magnetic confinement and equilibrium)
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52.35.Ra
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(Plasma turbulence)
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