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Control of disruption-generated runaway plasmas in TFTR

E.D. Fredrickson, M.G. Bell, G. Taylor, S.S. Medley2015年被引用 19Nuclear FusionIF 3出版社

Many disruptions in the Tokamak Fusion Test Reactor (TFTR) (Meade and the TFTR Group 1991 Proc. Int. Conf. on Plasma Physics and Controlled Nuclear Fusion (Washington, DC, 1990) vol 1 (Vienna: IAEA) pp 9–24) produced populations of runaway electrons which carried a significant fraction of the original plasma current. In this paper, we describe experiments where, following a disruption of a low-beta, reversed-shear plasma, currents of up to 1 MA carried mainly by runaway electrons were controlled and then ramped down to near zero using the ohmic transformer. In the longer lasting runaway plasmas, events resembling Parail–Pogutse instabilities were observed.

日本語訳

トカマク核融合試験炉(TFTR)における多くのディスラプション(Meade and the TFTR Group 1991 Proc. Int. Conf. on Plasma Physics and Controlled Nuclear Fusion (Washington, DC, 1990) vol 1 (Vienna: IAEA) pp 9–24)は、元のプラズマ電流の有意な割合を担う runaway 電子の集団を生成した。本論文では、低ベータ、反転シアプラズマのディスラプション後に、主に runaway 電子によって担われる最大 1 MA の電流が、オーミック変圧器を用いて制御され、その後ほぼゼロまでランプダウンされた実験について述べる。より長く持続する runaway プラズマでは、Parail–Pogutse 不安定性に類似した事象が観測された。

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