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Low-frequency flute modes in a magnetic quadrupole

Published online by Cambridge University Press:  13 March 2009

Joseph E. Willett  and
Hsi-Shu Wu
Joseph E. Willett
Affiliation:
Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, Missouri 65211, U.S.A.
Hsi-Shu Wu
Affiliation:
Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, Missouri 65211, U.S.A.
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Extract

An eigenvalue equation is derived for electrostatic waves with frequencies below the ion bounce frequency in a plasma confined by a magnetic quadrupole. This integral equation for the electrostatic potential is developed to second order in the curvature and contains the effects of electron and ion temperature gradients. A dispersion equation for flute modes is derived from it. The present theory applied to the private flux region of the UMIST quadrupole predicts that low-frequency flute modes will propagate in the electron and ion diamagnetic drift directions.

Type
Research Article
Information
Journal of Plasma Physics , Volume 39 , Issue 3 , June 1988 , pp. 503 - 510
Copyright
Copyright © Cambridge University Press 1988

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References

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