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Stable sustainment of plasmas with electron internal transport barrier by ECH in the LHD

Y Yoshimura, H Kasahara, M Tokitani, R Sakamoto, Y Ueda, N B Marushchenko, R Seki, S Kubo, T Shimozuma, H Igami2018年Plasma Physics and Controlled FusionIF 2.2出版社

The long pulse experiments in the Large Helical Device has made progress in sustainment of improved confinement states. It was found that steady-state sustainment of the plasmas with improved confinement at the core region, that is, electron internal transport barrier (e-ITB), was achieved with no significant difficulty. Sustainment of a plasma having e-ITB with the line average electron density ne_ave of 1.1 × 1019 m−3 and the central electron temperature Te0 of ∼3.5 keV for longer than 5 min only with 340 kW ECH power was successfully demonstrated.

日本語訳

大型ヘリカル装置における長パルス実験は、改善された閉じ込め状態の維持において進展を遂げた。コア領域における改善された閉じ込め状態、すなわち電子内部輸送障壁(e-ITB)を有するプラズマの定常維持が、大きな困難なく達成されることが見出された。線平均電子密度ne_aveが1.1×10^19 m^-3、中心電子温度Te0が約3.5 keVのe-ITBを有するプラズマを、わずか340 kWのECHパワーのみで5分以上維持することに成功し、実証された。

装置

lhd高精度(タイトル一致)

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Electron cyclotron heatingTransport barrierLHDInternal transport barrier
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