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First dynamic magnetic configuration scans in ECRH plasmas of the TJ-II Heliac

D. López-Bruna, J.A. Romero, R. Jiménez-Gómez, M.A. Pedrosa, M. Ochando, T. Estrada, A. López-Fraguas, F. Medina, J. Herranz, T. Kalhoff2009年被引用 22Nuclear FusionIF 3出版社

The configurational flexibility of the TJ-II Heliac has been upgraded with the commissioning of a mode of operation that allows changing the magnetic configuration dynamically: the currents feeding the different coil sets can be ramped during the discharge, which allows for, for example, moving up or down the offset of the rotational transform profile. The first discharges in this operation mode have been designed to investigate the effect of low order rational values of the rotational transform, , in low magnetic shear plasmas created and sustained with electron cyclotron resonance heating. The main magnetic resonances (8/5 and 5/3 in this work) do not deteriorate confinement except occasionally in a short, transient manner that is accompanied by a magnetic event with a clear frequency splitting.

日本語訳

TJ-IIヘリアックの配位柔軟性は、磁気配位を動的に変更できる運転モードの導入により向上した。すなわち、異なるコイルセットに供給する電流を放電中にランプ変化させることで、例えば回転変換プロファイルのオフセットを上下に移動させることが可能となった。この運転モードにおける最初の放電は、電子サイクロトロン共鳴加熱によって生成・維持される低磁気シアプラズマにおいて、回転変換の低次有理数値の影響を調べるために設計された。主な磁気共鳴(本研究では8/5および5/3)は、明確な周波数分裂を伴う磁気事象が発生する短時間の過渡的な場合を除き、閉じ込めを劣化させることはなかった。

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tj-ii高精度(タイトル一致)

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Electron cyclotron heatingTJ-II
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