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Direct measurement of fast magneto-sonic wave near the ion-ion hybrid resonance layer by magnetic probes

K. Ida, M. Naito, S. Shinohara, K. Miyamoto1983年被引用 9Nuclear FusionIF 3出版社

Direct measurement of the fast magnetosonic wave near the hybrid resonance layer in a deuterium-hydrogen plasma by magnetic probes is described. Externally driven waves in the ion cyclotron range of frequencies (ICRF) are excited by a half-turn antenna located on the high-field side in the TNT-A tokamak. The amplitude and the phase shift of the fast magnetosonic wave are measured by magnetic probes in the equatorial plane of the plasma. The amplitude of the fast magnetosonic wave is damped in the ion-ion hybrid resonance layer, and the wavelength changes at the high-field side near this layer. The amplitude and the phase shift of the wave as measured by the probes agree with those calculated from a cold-slab model.

日本語訳

磁気プローブによる重水素-水素プラズマ中のハイブリッド共鳴層近傍における高速磁気音波の直接測定について述べる。イオンサイクロトロン周波数帯域(ICRF)の外部駆動波は、TNT-Aトカマクの高磁場側に配置された半ターンアンテナによって励起される。高速磁気音波の振幅と位相シフトは、プラズマの赤道面において磁気プローブによって測定される。高速磁気音波の振幅はイオン-イオンハイブリッド共鳴層で減衰し、波長はこの層の近傍の高磁場側で変化する。プローブによって測定された波の振幅と位相シフトは、冷たいスラブモデルから計算されたものと一致する。

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