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Energy balance during disruption associated with vertical displacement events

G. Pautasso, A. Herrmann, K. Lackner1994年被引用 13Nuclear FusionIF 3出版社

The presence of an extended region of open flux surfaces (halo), during the current quench phase of the disruption of elongated plasmas, is supported by measurements of halo currents and by numerical simulations. The halo, in addition to providing a poloidal current path between the plasma and the first-wall components, allows rapid conduction and convection of energy along field lines, and therefore a mechanism for the localized deposition of energy onto the wall. The heat load to the region of the plasma-first-wall interaction is higher than in the scenario in which the magnetic energy is mostly dissipated by radiative processes

日本語訳

伸長したプラズマのディスラプションにおける電流クエンチ位相中に、開いた磁気面の拡張領域(ハロー)が存在することは、ハロー電流の測定と数値シミュレーションによって支持されている。ハローは、プラズマと第一壁構成要素との間にポロイダル電流経路を提供することに加えて、磁力線に沿ったエネルギーの急速な伝導と対流を可能にし、したがって壁への局所的なエネルギー堆積のメカニズムとなる。プラズマと第一壁の相互作用領域への熱負荷は、磁気エネルギーが主に放射過程によって散逸されるシナリオよりも高い。

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Plasma disruptionVertical displacement
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