Charles Karney: Publication 17/85, Karney(1979c)

C. F. F. Karney, F. W. Perkins, and Y. C. Sun.
Alfvén resonance effects on magnetosonic modes in large tokamaks.
Phys. Rev. Lett., 42(24):1621–1624, June 1979.
Princeton Univ. Rept. PPPL-1471 (Aug. 1978) 9 pp.
Reprint: prl79
DOI: 10.1103/PhysRevLett.42.1621
BibTeX Entry

The theory of Alfvén resonance effects on the wave modes of a tokamak is extended beyond the incompressible magnetohydrodynamic model to include finite-(ω/Ω_i ) 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.