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Effect of shear in toroidal rotation on toroidicity induced Alfven eigenmodes

M. Saigusa, Y. Kusama, T. Ozeki, H. Kimura, T. Fujita, S. Moriyama, T. Fujii, M. Azumi, V.I. Afanassiev, Y. Neyatani1997年被引用 17Nuclear FusionIF 3出版社

It is found that low-n toroidicity induced Alfven eigenmodes (TAEs) excited by ion cyclotron resonance heating can be stabilized by counter-tangential neutral beam injection in JT-60U. The deformation of the radial structure of the TAE mode due to the shear in toroidal rotation is a plausible stabilizing mechanism. This mechanism is also expected to be effective in suppressing high-n TAE modes. Real time control of TAE mode amplitudes using toroidal rotation control is possible for burn control in fusion reactors

日本語訳

低次トロイダル性アルフヴェン固有モード(TAE)が、JT-60Uにおいてイオンサイクロトロン共鳴加熱によって励起され、反接線中性粒子ビーム入射によって安定化され得ることが見出された。トロイダル回転のシアによるTAEモードの動径構造の変形が、妥当な安定化機構である。この機構は、高次TAEモードの抑制にも有効であると期待される。トロイダル回転制御を用いたTAEモード振幅のリアルタイム制御は、核融合炉における燃焼制御に対して可能である。

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Alfvén waveAlfvén eigenmodeToroidal rotation
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