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Theoretical prediction of bootstrap current in the Large Helical Device with unbalanced helical coil currents

K. Ichiguchi, N. Nakajima, M. Okamoto1997年被引用 7Nuclear FusionIF 3出版社

The Large Helical Device (LHD), which is a heliotron/torsatron device with two helical coils, is designed so that the current in each helical coil can be controlled independently. Unbalancing these currents leads to spatial axis configurations. The bootstrap current is found to be strongly affected by any imbalance between these currents. When the ratio of the currents in the two helical coils is small enough, a bootstrap current flows in a direction so as to decrease the rotational transform because of the enhancement of the bumpiness component of the magnetic field as well as of the spatial axis component. This leads to improved stability

日本語訳

大型ヘリカル装置(LHD)は、2つのヘリカルコイルを有するヘリオトロン/トルサトロン装置であり、各ヘリカルコイルの電流を独立に制御できるように設計されている。これらの電流のバランスを崩すと、空間軸配置が生じる。ブートストラップ電流は、これらの電流間の不均衡によって強く影響を受けることが見出されている。2つのヘリカルコイルの電流比が十分に小さい場合、磁場のバンピネス成分と空間軸成分の両方の増強により、回転変換を減少させる方向にブートストラップ電流が流れる。これにより、安定性が向上する。

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lhd高精度(タイトル一致)

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Helical deviceBootstrap current
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