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Physics of runaway electrons in tokamaks

Boris N. Breizman, Pavel Aleynikov, Eric M. Hollmann, Michael Lehnen2019年被引用 140Nuclear FusionIF 3出版社

Of all electrons, runaway electrons have long been recognized in the fusion community as a distinctive population. They now attract special attention as a part of ITER mission considerations. This review covers basic physics ingredients of the runaway phenomenon and the ongoing efforts (experimental and theoretical) aimed at runaway electron (RE) taming in the next generation tokamaks. We emphasize the prevailing physics themes of the last 20 years: the hot-tail mechanism of runaway production, RE interaction with impurity ions, the role of synchrotron radiation in runaway kinetics, RE transport in presence of magnetic fluctuations, micro-instabilities driven by REs in magnetized plasmas, and vertical stability of the plasma with REs. The review also discusses implications of the runaway phenomenon for ITER and the current strategy of RE mitigation.

日本語訳

すべての電子のうち、逃走電子は、核融合コミュニティにおいて長年にわたり特徴的な集団として認識されてきた。現在、それらはITERの任務検討の一部として特に注目を集めている。本レビューでは、逃走現象の基礎物理と、次世代トカマクにおける逃走電子(RE)の抑制を目的とした進行中の取り組み(実験的および理論的)を扱う。我々は、過去20年間の主要な物理テーマを強調する:逃走生成の高温テール機構、不純物イオンとのRE相互作用、逃走動力学におけるシンクロトロン放射の役割、磁気揺動の存在下でのRE輸送、磁化プラズマにおけるRE駆動の微視的不安定性、およびREを伴うプラズマの垂直安定性。本レビューはまた、ITERに対する逃走現象の影響と、現在のRE緩和戦略についても論じる。

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iter中精度(概要文一致)

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Runaway electron
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