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Diffusion processes in the field of a monochromatic wave propagating in an inhomogeneous magnetoplasma

Published online by Cambridge University Press:  13 March 2009

D. R. Shklyar  and
V. V. Solov'ev
D. R. Shklyar
Affiliation:
Institute for Terrestrial Magnetism, Ionosphere and Radiowave Propagation, 142092, Troitzk, Moscow Region, U.S.S.R.
V. V. Solov'ev
Affiliation:
Institute for Terrestrial Magnetism, Ionosphere and Radiowave Propagation, 142092, Troitzk, Moscow Region, U.S.S.R.
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Abstract

Particle diffusion in phase space due to the crossing of multiple cyclotron resonances in an inhomogeneous magnetic field is investigated. The influence of the inhomogeneity is most significant for small wave amplitudes, when stochastic heating is absent in a homogeneous plasma. The diffusion depends on the relationship between the wave amplitude, the inhomogeneity parameter and the angle of wave propagation. The dependence of the diffusion coefficients upon the mentioned parameters is investigated by means of computer simulations for the case of constant inhomogeneity and for two models of variable inhomogeneity: a monotonic change typical of magnetospheric conditions, and a sinusoidal change typical of tokamaks.

Type
Research Article
Information
Journal of Plasma Physics , Volume 40 , Issue 1 , August 1988 , pp. 97 - 107
Copyright
Copyright © Cambridge University Press 1988

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References

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