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Combined operation of lower hybrid current drive and heating and neutral beam injection on ASDEX

F.X. Soldner, R. Bartiromo, F. Leuterer, M.C. Zarnstorff, H.S. Bosch, H.U. Eahrbach, E.R. Muller, H.D. Murmann, K.-H. Steuer, O. Vollmer1993年被引用 8Nuclear FusionIF 3出版社

Current drive and heating with lower hybrid (LH) waves were combined with neutral beam injection (NBI) heating on ASDEX up to total powers of 4.2 MW. The same LH current drive efficiency as in Ohmic target plasmas was obtained. For the energy confinement time, similar parametric dependences on heating power, plasma current and qa value as in plateau-like scaling were found for combined operation of NBI and LH current drive in the L-mode. H-modes were triggered routinely by injection of LH waves during NBI. Peaked current density profiles give better global confinement than broad profiles in combined NBI and LH current drive

日本語訳

低域混成(LH)波による電流駆動と加熱を、ASDEXにおいて中性粒子ビーム入射(NBI)加熱と組み合わせ、合計パワー4.2 MWまで実施した。オーミック標的プラズマと同様のLH電流駆動効率が得られた。エネルギー閉じ込め時間については、LモードにおけるNBIとLH電流駆動の複合運転において、加熱パワー、プラズマ電流、qa値に対するパラメトリック依存性がプラトー型スケーリングと同様であることが見出された。Hモードは、NBI中のLH波の入射により定常的に誘発された。ピーク化した電流密度分布は、NBIとLH電流駆動の複合運転において、ブロードな分布よりも良好な全体閉じ込めを与える。

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asdex-upgrade高精度(タイトル一致)

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ASDEXCurrent driveNeutral beamNeutral beam injectionLower hybridLower hybrid current drive
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