文献类型：期刊文献

中文题名：High Bootstrap Current Fraction during the Synergy of LHCD and IBW on the HT-7 Tokamak

英文题名：High bootstrap current fraction during the synergy of LHCD and IBW on the HT-7 tokamak

作者：Zhang, Xian-Mei[1,2]; Wan, Bao-Nian[2]; Wu, Zhen-Wei[2]

机构：[1] Department of Physics, East China University of Science and Technology, Shanghai 200237, China; [2] Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China

年份：2005

卷号：22

期号：6

起止页码：1468

中文期刊名：Chinese Physics Letters

外文期刊名：Chinese Physics Letters

收录：CSTPCD;;EI(收录号：20220711663063);Scopus;CSCD:【CSCD2011_2012】；

语种：英文

外文关键词：Electron temperature - Magnetoplasma - Pressure - Shear flow

摘要：More than 70% of the total plasma current is sustained by the bootstrap current and current drive during the synergy of lower hybrid current driving (LHCD) and ion Berstein wave (IBW) heating on the HT-7 tokamak. The lower hybrid non-inductive current source is off-axis and well localized, and more than 35% bootstrap current plasma has been obtained. The IBW in controlling electron pressure profile can be integrated into the LHCD target plasma. The largest steep gradient of the electron pressure profile in the region ρ～0.5-0.7 mostly comes from the electron temperature profile, which may induce the large fraction bootstrap current. The large off-axis bootstrap current can help to create negative magnetic shear, and the good plasma confinement is achieved. ? 2005 Chinese Physical Society and IOP Publishing Ltd.