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The impact of radial electric fields and plasma rotation on intermittence in TJ-II

B Ph van Milligen, B A Carreras, L García, G Grenfell, I Voldiner, C Hidalgo, the TJ-II Team2022年Plasma Physics and Controlled FusionIF 2.2出版社

This work explores the impact of an imposed radial electric field on the intermittence parameter in magnetically confined plasmas. The intermittence is sensitive to both the magnetic configuration (dominant helical modes or low order rational surfaces) and to poloidal flows or radial electric fields. This behaviour was verified both in numerical turbulence calculations using a resistive magnetohydrodynamic model, and using Langmuir probe data obtained in experiments at the TJ-II stellarator. It is shown that the intermittence parameter can be used to detect when the local plasma rotation velocity, with respect to the laboratory frame of reference, is minimum.

日本語訳

この研究は、磁気閉じ込めプラズマにおける間欠性パラメータに対する外部印加径電場の影響を調査するものである。間欠性は、磁気配位(支配的なヘリカルモードまたは低次有理面)と、ポロイダル流または径電場の両方に敏感である。この挙動は、抵抗性磁気流体力学モデルを用いた数値乱流計算と、TJ-IIステラレータでの実験において得られたラングミュアプローブデータの両方で検証された。間欠性パラメータを用いることで、実験室座標系に対する局所プラズマ回転速度が最小となる時点を検出できることが示された。

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tj-ii高精度(タイトル一致)

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TJ-IIRadial electric fieldPlasma rotation
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