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Enhancement of current drive efficiency for electron cyclotron waves

T Okazaki, K Yoshioka, M Sugihara, N Fujisawa1991年Plasma Physics and Controlled FusionIF 2.2出版社

The frequency range of an electron cyclotron current drive is explored, in order to enhance the current drive efficiency. Its model is based on a two-dimensional, relativistic, bounce-averaged Fokker-Planck equation. The current drive efficiency is enhanced by a largely Doppler-shifted (up-shifted) frequency, using the relationship Y<or approximately= gamma -1, where Y=l omega ce/ omega (l:harmonic number, omega ce: electron cyclotron frequency, omega : injection frequency) and gamma is the relativistic factor. The behavior of the enhanced efficiency is examined under the toroidal effect as well as the DC electric field effect.

日本語訳

電子サイクロトロン電流駆動の周波数範囲が、電流駆動効率を向上させるために探求される。そのモデルは、二次元の相対論的バウンス平均化フォッカー・プランク方程式に基づいている。電流駆動効率は、大きなドップラーシフト(上方シフト)を受けた周波数によって向上し、関係式 Y≦γ-1 を用いる。ここで、Y=lω_ce/ω(l:高調波数、ω_ce:電子サイクロトロン周波数、ω:入射周波数)であり、γは相対論的因子である。向上した効率の挙動は、トロイダル効果および直流電場効果の下で調べられる。

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Current driveCyclotron waveElectron cyclotron wave
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