Phys. Rev. Lett. 42, 1621–1624 (1979)Alfvén Resonance Effects on Magnetosonic Modes in Large TokamaksReceived 14 August 1978; published in the issue dated 11 June 1979 The theory of Alfvén resonance effects on the wave modes of a tokamak is extended beyond the incompressible magnetohydrodynamic model to include finite-(ω/Ωi) effects and compressibility. The discrete spectrum of compressional Alfvén waves consists of a sequence of frequencies with finite damping decrements resulting from the Alfvén resonance. The finite-frequency effects can cause the damping to almost vanish. This permits Alfvén resonance heating via high-Q eigenmodes in large tokamaks. © 1979 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.42.1621
DOI:
10.1103/PhysRevLett.42.1621
PACS:
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