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Plasma engineering for the Next European Torus

N. Mitchell, E. Salpietro1987年Fusion Engineering and DesignIF 1.7出版社

The Next European Torus (NET) is a tokamak machine intended as the next step in the European fusion programme beyond the JET machine. As such it must have the capability to produce ignited plasmas and drive them for periods of up to several hundred seconds.One of the most critical areas in the design of fusion machines of the next generation, with both physics and technological objectives, is the plasma engineering. In this report we will consider the following aspects of the NET plasma engineering: (i) plasma configuration during start-up, burn and shut down; (ii) plasma control (equilibrium and stability) during burn; (iii) poloidal field coil power supply requirements; (iv) effect of disruptions.The poloidal field coil circuit must be designed not only to provide plasma equilibrium for a reference plasma during the machine “burn” phase, but also to start-up and shut down the plasma in a controlled fashion, while keeping within the technological constraints (maximum current density, maximum field, rate of change of field, power and voltage) imposed by superconducting coils and power supplies.

日本語訳

次期欧州トーラス(NET)は、JET装置を超える欧州核融合計画の次の段階として意図されたトカマク型装置である。そのため、点火プラズマを生成し、それを最大数百秒間駆動する能力を有していなければならない。物理的・技術的両方の目的を持つ次世代核融合装置の設計における最も重要な分野の一つが、プラズマ工学である。本報告書では、NETプラズマ工学の以下の側面について考察する。(i) 立ち上げ、燃焼、停止時のプラズマ配位、(ii) 燃焼中のプラズマ制御(平衡と安定性)、(iii) ポロイダル磁場コイル電源要件、(iv) ディスラプションの影響。ポロイダル磁場コイル回路は、超伝導コイルと電源によって課される技術的制約(最大電流密度、最大磁界、磁界の変化率、電力、電圧)を守りながら、基準プラズマの装置「燃焼」段階におけるプラズマ平衡を提供するだけでなく、プラズマを制御された方法で立ち上げ・停止できなければならない。

装置

jet中精度(概要文一致)

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Next European Torus
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