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Electrostatic ion cyclotron waves: Plasma heating, frequency shifts and linewidths

Published online by Cambridge University Press:  13 March 2009

Gregory Benford
Gregory Benford
Affiliation:
Physics Department, University of California, Irvine, California 92717
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Abstract

Ion cyclotron waves cannot be quasilinearly stabilized in Q-machine experiments because the electron distribution function does not have time to flatten while electrons pass through the plasma volume. We invoke a turbulently dissipative (or ‘resonance broadening’) model to explain the observed steady-state mode saturation. We give a qualitative picture of the important nonlinear features and their implications for plasma heating experiments. We extend the turbulently dissipative model to give nonlinear frequency shifts and a description of the mode linewidths in steady-state experiments. Turbulent resistivity is calculated and found to be unobservably small compared to the classical value. Implications for further experiments are discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 15 , Issue 3 , June 1976 , pp. 431 - 446
Copyright
Copyright © Cambridge University Press 1976

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References

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