Improved Confinement by Edge Multi-pulse Turbulent Heating on HT-6M Tokamak
MAO Jian-shan, LUO Jia-rong, LI Jian-gang, PAN Yuan, WANG Mao-quan, LIU Bao-hua, WAN Yuan-xi, LI Qiang, WU Xin-chao, LIANG Yun-feng, XU Yu-hong1, YU Chang-xuan1
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031
1Department of Modern Physics, University of Science and Technology of China, Hefei 230026
Improved Confinement by Edge Multi-pulse Turbulent Heating on HT-6M Tokamak
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031
1Department of Modern Physics, University of Science and Technology of China, Hefei 230026
Abstract： In the recent experiment on HT-6M tokamak, an improved ohmic confinement phase has been observed after application of the edge multi-pulse turbulent heating, and variance of plasma current ΔIp/Ip is about 14-20%;. The improved edge plasma confinement phase is characterized by (a) increased average electron density Ne and electron temperature Te; (b) reduced Hα radiation from the edge; (c) steeper density and temperature profiles at the edge; (d) a more negative radial electric field over a region of ~ 5mm deep inside the limiter; (e) a deeper electrostatic potential well at the edge; ( f ) reduced magnetic fluctuations at the edge.
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.
1997, Vol. 14 
