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The skin effect and its relaxation in tokamak LT-3

I.H. Hutchinson, A.H. Morton1976年被引用 38Nuclear FusionIF 3出版社

A hollow current profile is observed to form in the early stages of the Canberra tokamak LT-3. A helical perturbation appears, of the mode predicted by resistive MHD theory (m = 4, n = 1) for the measured q-profile. Subsequently, the plasma relaxes rapidly to a state of approximately uniform current. Runaway electrons diffuse very rapidly during this period with step sizes round the torus of up to 1 cm. These are indicative of a disruption of the magnetic surfaces, probably as a result of the growth of the helical perturbation.

日本語訳

キャンベラのトカマクLT-3の初期段階において、中空電流分布が形成されることが観測された。測定されたq分布に対して抵抗性MHD理論(m = 4、n = 1)によって予測されるモードのヘリカル摂動が現れる。その後、プラズマはほぼ一様な電流分布の状態へと急速に緩和する。この期間中、逃走電子はトーラス方向に最大1 cmのステップサイズで非常に速く拡散する。これらの現象は、ヘリカル摂動の成長の結果として生じる磁気面の破壊を示唆している。

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