Reversed-shear experiments in the T-10 tokamak

被引：17

作者：

Alikaev, VV ^{[1
]}

Borshchegovskii, AA ^{[1
]}

Dremin, MM ^{[1
]}

Esipchuk, YV ^{[1
]}

Kalupin, DV ^{[1
]}

Kirneva, NA ^{[1
]}

Kislov, AY ^{[1
]}

Kislov, DA ^{[1
]}

Martynov, AA ^{[1
]}

Myalton, TB ^{[1
]}

Notkin, GE ^{[1
]}

Poznyak, VI ^{[1
]}

Pavlov, YD ^{[1
]}

Roi, IN ^{[1
]}

Stepanenko, MM ^{[1
]}

Sushkov, AV ^{[1
]}

Trukhin, VM ^{[1
]}

Chistyakov, VV ^{[1
]}

机构：

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

来源：

PLASMA PHYSICS REPORTS | 2000年 / 26卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.952849

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：

Results from T-10 experiments in regimes with nonmonotonic plasma current profiles are presented. The possibility of controlling the current profile j(r) by electron-cyclotron current drive is demonstrated experimentally. Nonmonotonic q profiles with the reversed shear are obtained in which the q(min) value varies in a wide range, q(min) = 1-2.3. It is shown that the current profiles with q(min) similar to 2 (in this case, there are two resonant magnetic surfaces q = 2 in the plasma) can cause the onset of MHD instabilities. The possibility of the formation of an internal transport barrier in reversed-shear discharges in the T-10 tokamak is analyzed. In T-10, electron transport is governed by short-wavelength electron turbulence. As a result, there is no clear evidence of the formation of an inner transport barrier in these experiments. (C) 2000 MAIK "Nauka/lnterperiodica ".

引用

页码：177 / 190

页数：14

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