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Transport in threshold plasmas for a confinement transition in the TJ-II stellarator

D López-Bruna, J L Velasco, M Ochando, J Guasp, A López-Fraguas, B P van Milligen, E Ascasíbar, M Liniers, T Estrada, J M Fontdecaba2013年Plasma Physics and Controlled FusionIF 2.2出版社

A description and transport analysis (energy and particles) of neutral beam heated plasmas is shown for two almost identical magnetic configurations except for a ≈1% difference in their rotational transform, . Due to the low magnetic shear of TJ-II magnetic fields, such difference takes the low order rational to the plasma edge in one of them, while in the other the 8/5 value is near the edge but inside the plasma. A transport transition happens at lower density and plasma energy for the configuration that includes the , which exhibits better particle confinement already before the transition.

日本語訳

中性粒子ビーム加熱プラズマの記述と輸送解析(エネルギーと粒子)を、回転変換の≈1%の差を除いてほぼ同一の2つの磁気配位について示す。TJ-IIの低磁気シアのため、この差により、低次の有理面 が一方の配位ではプラズマ端に達するが、他方では8/5の値が端近くにあるがプラズマ内部にある。輸送遷移は、 を含む配位ではより低い密度とプラズマエネルギーで発生し、遷移前にすでにより良い粒子閉じ込めを示す。

装置

tj-ii高精度(タイトル一致)

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StellaratorTJ-II
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