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Electromagnetic effects induced by plasma disruptions in the NET vacuum vessel

R Albanese, L Bottura, E Coccorese, R Martone, G Rubinacci1991年Fusion Engineering and DesignIF 1.7出版社

AbstractThe paper aims to give a contribution to the critical issue of the plasma disruptions in the next generation large tokamaks. In this framework the electromagnetic effects occurring in the vacuum vessel structure proposed for NET-I are predicted by means of a 3-D eddy current code. Typical disruption scenarios are considered, including plasma current decays preceeded by radial or vertical motions. The mesh used for the computations includes vacuum vessel, poloidal field coils and a toroidally segmented outboard first wall.The main results of the analysis (time history of toroidal current, forces and torques on the vessel, forces on the first wall, magnetic field on P.F. coils, etc.) are summarized. Comments and physical interpretations are of general type and therefore applicable to other devices (e.g. NET-II, ITER); in this respect a simple scaling with the plasma current is provided.

日本語訳

本論文は、次世代大型トカマクにおけるプラズマ擾乱という重大な問題への貢献を目的とする。この枠組みにおいて、NET-I用に提案された真空容器構造で生じる電磁気的影響が、3次元渦電流コードを用いて予測される。典型的な擾乱シナリオが考慮され、径方向または垂直方向の運動に先行されるプラズマ電流減衰が含まれる。計算に用いられるメッシュには、真空容器、ポロイダル磁場コイル、およびトロイダル方向に分割された外部第一壁が含まれる。解析の主な結果(トロイダル電流の時間履歴、容器に作用する力とトルク、第一壁に作用する力、ポロイダル磁場コイル上の磁場など)が要約される。コメントと物理的解釈は一般的なものであり、したがって他の装置(例:NET-II、ITER)にも適用可能である。この点に関して、プラズマ電流に基づく簡易スケーリングが提供される。

装置

iter中精度(概要文一致)

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Plasma disruptionVacuum vesselNext European Torus
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