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Diffusion of resonance particles in strong plasma turbulence

Published online by Cambridge University Press:  13 March 2009

M. R. Gupta
M. R. Gupta
Affiliation:
Centre of Advanced Study in Applied Mathematics, University of Calcutta, Calcutta 700009, India.
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Abstract

This paper derives an expression for the velocity space diffusion tensor (time asymptotic) for resonant particles in the weak-coupling limit of strong plasma turbulence theory. The analysis is based on an improved approximation scheme for the determination of the actual particle trajectories, rather than the determination of &ensemble averaged particle orbits’ with the help of the &average Vlasov propagator’. Except for numerical factors of order unity, the results agree with those of Birmingham & Bornatici, both when Tc → 0 (Tc is the correlation width of the fluctuating field as seen by the resonant particles), and when Tc is finite but small. The paper indicates the limits of this method, as well as those of Birmingham & Bornatici.

Type
Research Article
Information
Journal of Plasma Physics , Volume 12 , Issue 2 , October 1974 , pp. 279 - 286
Copyright
Copyright © Cambridge University Press 1974

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References

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