Chin. Phys. Lett.  2001, Vol. 18 Issue (2): 257-259    DOI:
Original Articles |
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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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.
Keywords: 52.55.Fa      52.55.-s      52.35.Ra     
Published: 01 February 2001
PACS:  52.55.Fa (Tokamaks, spherical tokamaks)  
  52.55.-s (Magnetic confinement and equilibrium)  
  52.35.Ra (Plasma turbulence)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2001/V18/I2/0257
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WANG Cheng
PAN Ge-Sheng
WEN Yi-Zhi
YU Chang-Xuan
WAN Shu-De
LIU Wan-Dong
WANG Zhi-Jiang
SUN Xuan
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