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Changes in plasma potential and turbulent particle flux in the core plasma measured by heavy ion beam probe during L–H transitions in the TJ-II stellarator

A.V. Melnikov, L.G. Eliseev, T. Estrada, E. Ascasibar, A. Alonso, A.A. Chmyga, C. Hidalgo, A.D. Komarov, A.S. Kozachek, L.I. Krupnik2013年被引用 18Nuclear FusionIF 3出版社

Plasma potential and turbulent particle flux ΓE×B in the plasma core were measured for the first time during L–H/H–L transitions in the TJ-II heliac using a heavy ion beam probe. The L–H transition is characterized by a simultaneous potential drop ∼−100 V over the whole plasma radius, formation of density pedestal and a strong radial electric field Er between −100 to −150 V cm−1 in the edge (0.8 < ρ < 0.9), strong suppression of the broadband density and potential oscillations and of ΓE×B in the edge and core plasma.

日本語訳

プラズマポテンシャルと乱流粒子フラックスΓE×Bは、重イオンビームプローブを用いてTJ-IIヘリカル装置におけるL-H/H-L遷移中にプラズマコアで初めて測定された。L-H遷移は、プラズマ半径全体にわたる約-100 Vのポテンシャル降下、密度ペデスタルの形成、エッジ(0.8 < ρ < 0.9)における-100〜-150 V cm⁻¹の強い径方向電場Er、エッジおよびコアプラズマにおける広帯域密度振動とΓE×Bの強い抑制を特徴とする。

装置

tj-ii高精度(タイトル一致)

wiki

StellaratorIon beamsTJ-IIL-H transitionPlasma potentialHeavy ion beamIon beam probe
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