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Second harmonic electron cyclotron current drive experiments on T-10

V.V. Alikaev, A.A. Bagdasarov, A.A. Borshegovskij, V.V. Chistyakov, M.M. Dremin, Yu.A. Gorelov, A.V. Gorshkov, Yu.V. Esipchuk, D.B. Evdokimov, A.Ya. Kislov1995年被引用 24Nuclear FusionIF 3出版社

Results of the electron cyclotron current drive experiment at the second harmonic resonance on the T-10 tokamak are presented. High frequency (HF) power up to 1.2 MW was launched from the low field side. A maximum driven current of 35 kA and current drive efficiency ηCD = 0.05 A/W at an electron temperature Tc(O) = 4 keV and a density nc(0) = 1 × 1013 cm-3 were obtained. For low HF power, the current drive efficiency was less than predicted by the linear theory unless the effect of the elliptical polarization from non-perpendicular injection is considered, in which case the efficiency is close to the theoretical value. The experimental dependence of HF on the absorbed HF power indicated a strong increase of ηCD with power. Suppression of sawtooth oscillations and improvement of confinement during electron cyclotron heating has also been demonstrated

日本語訳

T-10トカマクにおける第2高調波共鳴での電子サイクロトロン電流駆動実験の結果を提示する。低磁場側から最大1.2 MWの高周波(HF)電力を入射した。電子温度Tc(O) = 4 keV、密度nc(0) = 1 × 10^13 cm^-3において、最大駆動電流35 kA、電流駆動効率ηCD = 0.05 A/Wが得られた。低HF電力では、非垂直入射による楕円偏光の効果を考慮しない限り、電流駆動効率は線形理論の予測より低かったが、この効果を考慮すると効率は理論値に近づいた。HF電力に対する実験的な依存性は、ηCDが電力とともに強く増加することを示した。また、電子サイクロトロン加熱中の鋸歯状振動の抑制と閉じ込めの改善も実証された。

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