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Influence of rf waves on interchange modes in HANBIT mirror plasmas

Hogun Jhang, S.S. Kim, S.G. Lee, J.G. Bak, B.H. Park2005年被引用 1Nuclear FusionIF 3出版社

A study is conducted on the influence of radio frequency (rf) waves upon interchange stability in HANBIT mirror plasmas. An emphasis is put on the interchange stability near the resonance region, ω0 ≃ Ωi, where ω0 (Ωi) is the angular frequency of the applied rf wave (ion cyclotron frequency). A strong nonlinear interaction between the rf wave and the interchange mode has been observed with the generation of sideband waves. A theory of rf-interchange mode interaction keeping effects of both the equilibrium ponderomotive force and the nonlinear sideband wave coupling is applied to interpret HANBIT experimental results, resulting in good agreement. Results have shown that the nonlinear coupling process is responsible for the rf stabilization of interchange modes near the resonance region.

日本語訳

無線周波数(rf)波がHANBITミラープラズマにおける交換安定性に及ぼす影響について研究が行われている。共鳴領域ω₀ ≃ Ωᵢ(ここでω₀は印加rf波の角周波数、Ωᵢはイオンサイクロトロン周波数)付近の交換安定性に重点が置かれている。rf波と交換モードの間の強い非線形相互作用が、側帯波の生成を伴って観測されている。平衡ポンデロモーティブ力と非線形側帯波結合の両方の効果を保持するrf-交換モード相互作用の理論が、HANBITの実験結果を解釈するために適用され、良好な一致が得られている。結果は、非線形結合過程が共鳴領域付近での交換モードのrf安定化に寄与していることを示している。

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