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On-axis electron cyclotron current drive experiment on WT-3

M Asakawa, H Tanaka, T Maekawa, Y Terumichi2001年Fusion Engineering and DesignIF 1.7出版社

AbstractThe control of the current profile near the magnetic axis by electron cyclotron current drive (ECCD) is demonstrated experimentally on the WT-3 tokamak. Compared with the previous experiments, the driven current was increased by injecting the elliptically polarized microwave with the optimal polarization ellipticity. The effect of the improved absorption appears on the sawteeth behavior, soft X-ray emissivity and so on. The difference of the time evolution of the loop voltages between co-CD and counter-CD is also discussed.

日本語訳

WT-3トカマクにおいて、電子サイクロトロン電流駆動(ECCD)による磁気軸近傍の電流分布制御が実験的に実証された。従来の実験と比較して、最適な偏波楕円率を持つ楕円偏波マイクロ波を入射することにより、駆動電流が増大した。この改善された吸収の効果は、鋸歯状振動の挙動や軟X線放射率などに現れている。また、共方向CDと反方向CDにおけるループ電圧の時間発展の差異についても議論する。

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Current driveElectron cyclotron current drive
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