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Density fluctuations in Heliotron E measured using C02 laser phase contrast method

S Kado, H Nakatake, K Muraoka, K Kondo, T Obiki1997年Fusion Engineering and DesignIF 1.7出版社

AbstractDensity fluctuations in NBI (neutral beam injection) plasmas in Heliotron E were studied using the laser phase contrast (LPC) method. A counter-propagating pair of waves, electron mode and ion mode, was observed in the edge region. Their dependences on the ion and electron temperatures are discussed in an experiment where ECH (electron cyclotron heating) pulses were superposed on the NBI plasmas.

日本語訳

ヘリオトロンEにおけるNBI(中性粒子ビーム入射)プラズマ中の密度揺動を、レーザー位相コントラスト(LPC)法を用いて研究した。周辺領域において、逆方向に伝播する一対の波、すなわち電子モードとイオンモードが観測された。NBIプラズマにECH(電子サイクロトロン加熱)パルスを重畳した実験において、これらの波のイオン温度および電子温度への依存性について考察した。

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