MHD activity and formation of the electron internal transport barrier in the T-10 tokamak

被引：37

作者：

Razumova, KA ^{[1
]}

Alikaev, VV ^{[1
]}

Borschegovskii, AA ^{[1
]}

Chistyakov, VV ^{[1
]}

Dremin, MM ^{[1
]}

Gorshkov, AV ^{[1
]}

Kislov, AY ^{[1
]}

Kislov, DA ^{[1
]}

Krylov, SV ^{[1
]}

Lysenko, SE ^{[1
]}

Myalton, TB ^{[1
]}

Notkin, GE ^{[1
]}

Poznyak, VI ^{[1
]}

Pavlov, YD ^{[1
]}

Roy, IN ^{[1
]}

Savrukhin, PV ^{[1
]}

Sushkov, AV ^{[1
]}

Sannikov, VV ^{[1
]}

Soldatov, SV ^{[1
]}

Vershkov, VA ^{[1
]}

机构：

[1] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2000年 / 42卷 / 09期

关键词：

D O I：

10.1088/0741-3335/42/9/303

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 plasma stability and confinement have been investigated through control of the safety factor profile q(r) by the electron cyclotron current drive in the T-10 tokamak. The regimes with dq/dr congruent to 0 and dq/dr < 0 in the plasma core were obtained. Various types of MHD activity were observed: ordinary sawtooth, saturated sawtooth, humpbacks, trills etc. It was shown that when the minimal value q(min) increases from q(min) < 1 to q(min) = 2 the plasma becomes strongly unstable due to the corresponding MHD activity or passes to the steady-state improved confinement mode. The latter is realized when the electron internal transport barrier (EITB) is formed. The condition for the appearance of the EITB is dq/dr congruent to 0, where q = m/n lies near a rational value for low m and n.

引用

页码：973 / 986

页数：14

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