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A numerical study of double-helix current drive for tokamaks

W K Bertram1988年Plasma Physics and Controlled FusionIF 2.2出版社

A proposed method (M.J. Dutch et al. 1986) for driving steady poloidal and toroidal currents in a tokamak by means of RF currents in double sets of m=1 helical coils is investigated using a simple theoretical model. Numerical results are presented that show a strong dependence of the current drive mechanism on the strength of the static toroidal magnetic field. Contrary to previously published theoretical results, it is shown that in general the driven toroidal current does not vanish at some point close to the magnetic axis.

日本語訳

二組のm=1ヘリカルコイルにおけるRF電流によってトカマク内に定常的なポロイダル電流とトロイダル電流を駆動する方法(M.J. Dutchら、1986年)を、単純な理論モデルを用いて調べた。数値計算の結果、電流駆動機構が静的なトロイダル磁場の強さに強く依存することが示された。これまでに発表された理論的結果とは対照的に、駆動されるトロイダル電流は一般に磁気軸付近のある点で消滅しないことが示された。

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Current drive
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