Isotopic effect in experiments on lower hybrid current drive in the FT-2 tokamak

被引：8

作者：

Lashkul, S. I. ^{[1
]}

Altukhov, A. B. ^{[1
]}

Gurchenko, A. D. ^{[1
]}

Gusakov, E. Z. ^{[1
]}

D'yachenko, V. V. ^{[1
]}

Esipov, L. A. ^{[1
]}

Irzak, M. A. ^{[1
]}

Kantor, M. Yu. ^{[1
]}

Kouprienko, D. V. ^{[1
]}

Saveliev, A. N. ^{[1
]}

Stepanov, A. Yu. ^{[1
]}

Shatalin, S. V. ^{[2
]}

机构：

[1] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] St Petersburg State Tech Univ, St Petersburg 195251, Russia

来源：

PLASMA PHYSICS REPORTS | 2015年 / 41卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

PLASMA; EFFICIENCY;

D O I：

10.1134/S1063780X15120089

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：

To analyze factors influencing the limiting value of the plasma density at which lower hybrid (LH) current drive terminates, the isotopic factor (the difference in the LH resonance densities in hydrogen and deuterium plasmas) was used for the first time in experiments carried out at the FT-2 tokamak. It is experimentally found that the efficiency of LH current drive in deuterium plasma is appreciably higher than that in hydrogen plasma. The significant role of the parametric decay of the LH pumping wave, which hampers the use of the LH range of RF waves for current drive at high plasma densities, is confirmed. It is demonstrated that the parameters characterizing LH current drive agree well with the earlier results obtained at large tokamaks.

引用

页码：990 / 996

页数：7

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