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Combined non-inductive current drive in a high confinement reversed magnetic shear plasma at high normalized density in JT-60U

S Ide, T Fujita, T Suzuki, T Hatae, O Naito, Y Kamada, M Seki2002年Plasma Physics and Controlled FusionIF 2.2出版社

Non-inductive full current drive (CD) in a reversed magnetic shear (RS) plasma with high energy confinement of 1.4 times the H-mode scaling at 82% of the Greenwald density has been achieved simultaneously for the first time in a tokamak; these results were obtained in the JT-60U tokamak. The full-CD state was realized by a combination of waves in the lower hybrid range of frequency and neutral beam injection together with high bootstrap current fraction (fbs) of 62% to the total plasma current. The combination has demonstrated for the first time active current profile modification in a high fbs RS plasma both in the core and in the peripheral regions.

日本語訳

非誘導完全電流駆動(CD)と、Hモードスケーリングの1.4倍の高エネルギー閉じ込めを、グリーンワルド密度の82%において反転磁気シア(RS)プラズマで同時に達成したのは、トカマクにおいて初めてである。これらの結果はJT-60Uトカマクで得られた。完全電流駆動状態は、低混成波周波数帯の波動と中性粒子ビーム入射の組み合わせにより実現され、同時に全プラズマ電流に対する高ブートストラップ電流分率(fbs)62%を達成した。この組み合わせにより、高fbsのRSプラズマにおいて、コア領域と周辺領域の両方で能動的な電流分布修正が初めて実証された。

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Current driveJT-60UMagnetic shearReversed magnetic shear
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