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.
WANG Cheng;PAN Ge-Sheng;WEN Yi-Zhi;YU Chang-Xuan;WAN Shu-De;LIU Wan-Dong;WANG Zhi-Jiang;SUN Xuan. Generation of Radial Electric Field with Electrode Biasing[J]. 中国物理快报, 2001, 18(2): 257-259.
WANG Cheng, PAN Ge-Sheng, WEN Yi-Zhi, YU Chang-Xuan, WAN Shu-De, LIU Wan-Dong, WANG Zhi-Jiang, SUN Xuan. Generation of Radial Electric Field with Electrode Biasing. Chin. Phys. Lett., 2001, 18(2): 257-259.
YANG Qing-Wei;ZHOU Hang-Yu;FENG Bei-Bin;LIU Yi;PAN Yu-Dong;LI Wei;DUAN Xu-Ru;CHEN Wei;CUI Zheng-Ying;JI Xiao-Quan;DING Xuan-Tong;HL-A team. A New Criterion for Disruption Prediction on HL-2A[J]. 中国物理快报, 2006, 23(4): 891-894.