General relations for resonant particle diffusion in pitch angle and energy
- 1 August 1974
- journal article
- Published by Cambridge University Press (CUP) in Journal of Plasma Physics
- Vol. 12 (1) , 45-49
- https://doi.org/10.1017/s0022377800024910
Abstract
By applying quasi-linear diffusion theory, general expressions are obtained for particle diffusion coefficients in both pitch angle and energy. The results are valid for resonant interactions with any mode of weak plasma turbulence, with wave energy distributed over any range of frequencies and wave normal angles. Simple relations are found between the diffusion coefficients, these relations reflecting the geometry of the diffusion surfaces for resonant particles.Keywords
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