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Optimization of ICRH for core impurity control in JET-ILW

E. Lerche, M. Goniche, P. Jacquet, D. Van Eester, V. Bobkov, L. Colas, C. Giroud, I. Monakhov, F.J. Casson, F. Rimini2016年被引用 60Nuclear FusionIF 3出版社

Ion cyclotron resonance frequency (ICRF) heating has been an essential component in the development of high power H-mode scenarios in the Jet European Torus ITER-like wall (JET-ILW). The ICRF performance was improved by enhancing the antenna-plasma coupling with dedicated main chamber gas injection, including the preliminary minimization of RF-induced plasma-wall interactions, while the RF heating scenarios where optimized for core impurity screening in terms of the ion cyclotron resonance position and the minority hydrogen concentration. The impact of ICRF heating on core impurity content in a variety of 2.5 MA JET-ILW H-mode plasmas will be presented, and the steps that were taken for optimizing ICRF heating in these experiments will be reviewed.

日本語訳

イオンサイクロトロン共鳴周波数(ICRF)加熱は、JET欧州トーラスITER型壁(JET-ILW)における高出力Hモードシナリオの開発において不可欠な要素となっている。ICRF性能は、専用の主室ガス入射によるアンテナ-プラズマ結合の強化によって向上し、RF誘起プラズマ-壁相互作用の予備的な低減も含まれていた。一方、RF加熱シナリオは、イオンサイクロトロン共鳴位置と水素 minority 濃度の観点から、コア不純物スクリーニングに対して最適化された。多様な2.5 MA JET-ILW HモードプラズマにおけるICRF加熱がコア不純物含有量に及ぼす影響を提示し、これらの実験においてICRF加熱を最適化するために講じた措置を概説する。

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jet高精度(タイトル一致)iter低精度(概要文一致)

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