Low Frequency Fishbone Mode Induced by Circulating Particles in Spherical Tori

Kolesnichenko, Ya.I. ; Marchenko, V.S. ; White, R.B.

Princeton University. Plasma Physics Laboratory.

关键词: Fishbone Instability;    Stabilization;    70 Plasma Physics And Fusion Technology;    Toroidal Configuration;    Tori;   

DOI  :  10.2172/775577
RP-ID  :  PPPL-3540
RP-ID  :  AC02-76CH03073
RP-ID  :  775577

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来源: UNT Digital Library

【 摘 要 】

It is found that high beta in low-aspect-ratio tori tends to stabilize the fishbone instability in a plasma with energetic circulating ions. The stabilization results from enhancement of the toroidal drift motion by large Shafranov shift, which makes it difficult to reconcile the condition of considerable energy exchange between the ions and the internal kink perturbation with the condition of the resonant wave-particle interaction.