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Charge neutralization by poloidal plasma rotation

R van Nieuwenhove1992年Plasma Physics and Controlled FusionIF 2.2出版社

In the Tokamak and stellarator confinement concept, an essential role of the rotational transform is to prevent charge accumulation due to the Del B and curvature drifts. The author shows that without rotational transform, charge accumulation can still be avoided by a fast poloidal bulk plasma rotation. It is demonstrated that it is feasible to impose the necessary rotation by high power, perpendicular, off-axis neutral beam injection (NBI). The consequences of these new results are discussed.

日本語訳

トカマクおよびステラレーター閉じ込め概念において、回転変換の本質的な役割は、∇Bドリフトおよび曲率ドリフトによる電荷蓄積を防ぐことである。著者は、回転変換がなくても、高速なポロイダル方向のバルクプラズマ回転によって電荷蓄積を回避できることを示す。高パワー、垂直方向、オフアクシス中性粒子ビーム入射(NBI)によって必要な回転を課すことが可能であることが実証される。これらの新しい結果の帰結について議論する。

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