Scaling of energy confinement time in the Globus-M spherical tokamak

被引:19
|
作者
Kurskiev, G. S. [1 ]
Gusev, V. K. [1 ]
Sakharov, N. V. [1 ]
Bakharev, N. N. [1 ]
Iblyaminova, A. D. [1 ]
Shchegolev, P. B. [1 ]
Avdeeva, G. F. [1 ]
Kiselev, E. O. [1 ]
Minaev, V. B. [1 ]
Mukhin, E. E. [1 ]
Patrov, M. I. [1 ]
Petrov, Yu V. [1 ]
Telnova, A. Yu [1 ]
Tolstyakov, S. Yu [1 ]
机构
[1] Ioffe Inst, St Petersburg, Russia
关键词
spherical tokamak; confinement time; scaling;
D O I
10.1088/1361-6587/aa5cd5
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
The paper is devoted to an energy confinement study at the Globus-M spherical tokamak (ST). Experiments were performed in single null divertor configuration with elongation as high as 1.8-1.9 for variable plasma current and fixed toroidal magnetic field. The confinement time (tau(E)) dependence on density for ohmic-heated (OH) deuterium plasma is presented. It was found that tau(E) rises linearly with plasma current in H-mode with pure ohmic heating. Pronounced electron and ion heating was achieved in discharges with neutral beam injection at a moderate density level. The dependence of tau(E) on absorbed power was weak.
引用
收藏
页数:7
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