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Destabilization of the shear Alfven mode by alpha particles and other high energy ions

V.S. Belikov, Ya.I. Kolesnichenko, O.A. Silivra1992年被引用 16Nuclear FusionIF 3出版社

Toroidal Alfven eigenmode (TAE) and elliptical Alfven eigenmode (EAE) instabilities in plasmas with high energy ions are considered in the context of local theory. The instability growth rate is found for cases when waves are excited by alpha particles or by ions produced as a result of neutral injection or RF heating. Electron and ion Landau damping due to the toroidal sideband wave-particle interaction is also calculated. The electron damping rate is shown to be much lower than the generally accepted value. The TAE instability observed in the experiment with neutral beam injection on TFTR is analysed and the principal experimental features of TAE instability are explained

日本語訳

高エネルギーイオンを含むプラズマ中のトロイダル・アルフヴェン固有モード(TAE)および楕円アルフヴェン固有モード(EAE)不安定性を、局所理論の枠組みで考察する。不安定性の成長率は、アルファ粒子または中性粒子入射加熱や高周波加熱の結果生成されたイオンによって波動が励起される場合について求められる。トロイダル側帯波と粒子の相互作用による電子およびイオンのランダウ減衰も計算される。電子の減衰率は、一般に受け入れられている値よりもはるかに低いことが示される。TFTRにおける中性粒子入射実験で観測されたTAE不安定性を解析し、TAE不安定性の主な実験的特徴を説明する。

装置

tftr低精度(概要文一致)

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Alfvén waveAlpha particlesShear Alfvén waves
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