Combined non-inductive current drive in a high confinement reversed magnetic shear plasma at high normalized density in JT-60U

被引:25
作者
Ide, S [1 ]
Fujita, T [1 ]
Hatae, T [1 ]
Naito, O [1 ]
Kamada, Y [1 ]
Seki, M [1 ]
机构
[1] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 3110193, Japan
关键词
D O I
10.1088/0741-3335/44/11/101
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Non-inductive full current drive (CD) in a reversed magnetic shear (RS) plasma with high energy confinement of 1.4 times the H-mode scaling at 82% of the Greenwald density has been achieved simultaneously for the first time in a tokamak; these results were obtained in the JT-60U tokamak. The full-CD state was realized by a combination of waves in the lower hybrid range of frequency and neutral beam injection together with high bootstrap current fraction (f(bs)) of 62% to the total plasma current. The combination has demonstrated for the first time active current profile modification in a high f(bs) RS plasma both in the core and in the peripheral regions.
引用
收藏
页码:L63 / L69
页数:7
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