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First results from H-mode plasmas generated by ICRF heating in the EAST

X.J. Zhang, Y.P. Zhao, B.N. Wan, X.Z. Gong, J.G. Li, Y. Lin, C.M. Qin, G. Taylor, G.S. Xu, Y.W. Sun2013年被引用 49Nuclear FusionIF 3出版社

Deuterium high-confinement (H-mode) plasmas, lasting up to 3.45 s, have been generated in the EAST by ion cyclotron range of frequency (ICRF) heating. H-mode access was achieved by coating the molybdenum-tiled first wall with lithium to reduce the hydrogen recycling from the wall. H-mode plasmas with plasma currents between 0.4 and 0.6 MA and axial toroidal magnetic fields between 1.85 and 1.95 T were generated by 27 MHz ICRF heating of deuterium plasma with hydrogen minority. The ICRF input power required to access the H-mode was 1.6–1.8 MW. The line-averaged density was in the range (1.83–2.3) × 1019 m−3. 200–500 Hz type-III edge localized mode activity was observed during the H-mode phase. The H-mode confinement factor, H98IPB(y, 2), was ∼0.7.

日本語訳

重水素高閉じ込め(Hモード)プラズマは、EASTにおいてイオンサイクロトロン周波数帯(ICRF)加熱により、最大3.45秒間生成された。Hモードへの遷移は、モリブデンタイル張りの第一壁にリチウムを被覆して水素リサイクリングを低減することにより達成された。Hモードプラズマは、プラズマ電流0.4〜0.6 MA、軸方向トロイダル磁場1.85〜1.95 Tの条件下で、重水素プラズマの水素マイノリティICRF加熱(27 MHz)により生成された。Hモードへの遷移に必要なICRF入力電力は1.6〜1.8 MWであった。線平均密度は(1.83〜2.3)×10¹⁹ m⁻³の範囲であった。Hモード位相中には200〜500 HzのタイプIIIエッジ局在モード(ELM)活動が観測された。Hモード閉じ込め係数H98IPB(y,2)は約0.7であった。

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east高精度(タイトル一致)

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EASTH-modeIon cyclotron heating
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