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Quasi-stationary high β plasmas and fast particle instabilities in the COMPASS-D tokamak with ECRH and LHCD

M. Valovic, B. Lloyd, K.G. McClements, C.D. Warrick, S.J. Fielding, A.W. Morris, T. Pinfold, H.R. Wilson, COMPASS-D Team, ECRH Team2000年被引用 48Nuclear FusionIF 3出版社

Quasi-stationary, high β tokamak plasmas (βNdia ≈ 2) have been developed in the COMPASS-D tokamak using ECRH. These regimes are sustained for 20 energy confinement times and are limited by the duration of the heating pulse. For the first time, fast particle instabilities are observed with strong electron heating only. The plasmas are sawtooth free and the most dangerous (m = 2, n = 1) neoclassical tearing modes are avoided. The scenario is a result of the optimization of the timing of the heating pulse and application of LHCD.

日本語訳

COMPASS-Dトカマクにおいて、ECRHを用いて準定常的な高βトカマクプラズマ(βNdia ≈ 2)が開発された。これらの状態は、エネルギー閉じ込め時間の20倍にわたって維持され、加熱パルスの持続時間によって制限される。初めて、強い電子加熱のみで高速粒子不安定性が観測された。プラズマは鋸歯状振動がなく、最も危険な(m = 2, n = 1)新古典テアリングモードが回避される。このシナリオは、加熱パルスのタイミングの最適化とLHCDの適用の結果である。

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Fusion Advanced Studies TorusElectron cyclotron heatingLower hybrid current driveCOMPASS
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