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Parametric decay of magneto-acoustic oscillations in a cylindrical plasma

Published online by Cambridge University Press:  13 March 2009

N. F. Cramer  and
W. N-C. Sy
N. F. Cramer
Affiliation:
School of Physics, University of Sydney, Sydney, N.S.W. 2006, Australia
W. N-C. Sy
Affiliation:
Research School of Physical Sciences, Australian National University, Canberra, A.C.T. 2600, Australia
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Abstract

Parametric decay of magneto-acoustic oscillations in a cylindrical plasma column is considered, including the Hall effect and the effects of finite resistivity. Growth rates for axisymmetric modes in decay instabilities are derived and applied to the problems of parametric excitation of Alfvén waves and supplementary heating of plasmas. It is shown that both the slow (ion cyclotron) and fast (compressional) modes may be parametrically excited. The threshold &litudes for nonlinear dissipation of pump field energy are calculated and briefly discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 22 , Issue 3 , December 1979 , pp. 549 - 562
Copyright
Copyright © Cambridge University Press 1979

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References

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