Investigation of the Energy Confinement in Ohmic and LHCD Plasmas in HT-7

被引:0
作者
张晓卿 [1 ]
万宝年 [2 ]
沈飙 [2 ]
胡希伟 [3 ]
钱金平 [2 ]
范恒玉 [2 ]
丁永华 [2 ]
机构
[1] Institute of Plasma Physics, Chinese Academy of Sciences, Hefei , China Huazhong University of Science and Technology, Wuhan , China
[2] Institute of Plasma Physics, Chinese Academy of Sciences, Hefei , China
[3] Huazhong University of Science and Technology, Wuhan , China
关键词
tokamak; confinement; scaling; lower hybrid current drive;
D O I
暂无
中图分类号
O53 [等离子体物理学];
学科分类号
070204 ;
摘要
<正> Investigation of the energy confinement in ohmic and lower hybrid current drive (LHCD) plasmas in HT-7 has been performed. In ohmic discharges at low densities the global energy confinement time TE increases almost linearly with the density, saturates at a critical density (2.5×1013/cm3 for HT-7) and is nearly constant at higher densities. The energy confinement time is in good agreement with the Neo-Alcator scaling law at different densities and currents. In the LHCD plasmas the global energy confinement time similar to that of the L-mode discharges has been observed to be in good agreement with the low confinement mode (L mode) scaling law of ITER89-P in higher electron density and plasma current.
引用
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页码:141 / 146
页数:6
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