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Transport equations for lower hybrid waves in a turbulent plasma

Published online by Cambridge University Press:  24 November 2014

J. T. Mendonça ,
W. Horton ,
R. M. O. Galvão  and
Yves Elskens
J. T. Mendonça*
Affiliation:
Instituto de Física, Universidade de São Paulo, São Paulo SP, 05508-090Brasil
W. Horton
Affiliation:
The University of Texas at Austin, Austin, Texas 78712, USA
R. M. O. Galvão
Affiliation:
Instituto de Física, Universidade de São Paulo, São Paulo SP, 05508-090Brasil
Yves Elskens
Affiliation:
Aix-Marseille Université, CNRS, UMR 7345, campus Saint-Jérôme, FR-13013 Marseilles, France
*
†Email address for correspondence: [email protected]
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Abstract

We consider the limits of validity of ray tracing and ray diffusion equations, for short wavelength waves propagating in a turbulent plasma background. We derive an improved transport equation for the electric field autocorrelation function, where first order diffraction effects associated with these waves are included. We apply this description to the case of lower hybrid (LH) waves propagating in non-stationary plasma where density perturbations can occur due to drift wave turbulence, as well as magnetic field perturbations due to MHD turbulence. This is relevant to the problem of LH current drive.

Type
Research Article
Information
Journal of Plasma Physics , Volume 81 , Issue 2 , April 2015 , 905810206
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Copyright
Copyright © Cambridge University Press 2014 

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References

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