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Energy confinement in JT-60 lower hybrid current driven plasmas

K. Ushigusa, T. Imai, O. Naito, Y. Ikeda, S. Tsuji, K. Uehara, JT-60 Team1990年被引用 13Nuclear FusionIF 3出版社

The energy confinement in high power lower hybrid current driven (LHCD) plasmas has been studied in the JT-60 tokamak. At a plasma current of 1 MA, the diamagnetically estimated energy confinement time in LHCD plasmas has almost the same value as the confinement time in ohmically heated plasmas at e ∼ 1.0 × 1019 m−3. The confinement time of high power LHCD plasmas (PLH ≤ 4.5 MW) is longer than that of neutral beam heated plasmas at the same power level. The energy confinement time depends on the LHCD power and on the electron density, but is independent of the plasma current, with α + β ∼ −0.3.

日本語訳

高電力低混成電流駆動(LHCD)プラズマにおけるエネルギー閉じ込めが、JT-60トカマクにおいて研究された。プラズマ電流1 MAにおいて、LHCDプラズマ中のダイアモグネティック測定によるエネルギー閉じ込め時間は、電子密度e ∼ 1.0 × 10¹⁹ m⁻³におけるオーミック加熱プラズマの閉じ込め時間とほぼ同じ値であった。高電力LHCDプラズマ(P_LH ≤ 4.5 MW)の閉じ込め時間は、同じ電力レベルの中性粒子ビーム加熱プラズマのそれよりも長かった。エネルギー閉じ込め時間はLHCD電力と電子密度に依存するが、プラズマ電流には依存せず、α + β ∼ −0.3であった。

装置

jt-60sa高精度(タイトル一致)

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Current driveLower hybridLower hybrid current driveEnergy confinementJT-60
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