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The effects of parallel motion are included in the diffusion of charged particles in a constant, uniform and strong magnetic field, in the presence of an electrostatic turbulence which is homogeneous, stationary and isotropic in the plane perpendicular to the magnetic field. The system of non-linear equations obtained, represents the coupling between parallel and perpendicular diffusion in space, and the average Lagrangian parallel electric field, deduced in the renormalised quasi-linear approximation. By using a model spectrum based on tokamak experimental data, an explicit expression and numerical values for the quasi-linear approximation of the asymptotic parallel average Lagrangian electric field are deduced, as functions of the parallel velocity of the charged particle.

Additional information

Authors: FIEDLER-FERRARI N, Universidade de Sao Paulo, Instituto de Fisica, Sao Paulo (BR);MISGUICH J H, CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR);BALESCU R, Université Libre de Bruxelles, Bruxelles (BE)
Bibliographic Reference: Paper presented: IVth Latin American Workshop on Plasma Physics, Buenos Aires (AR), July 16-27, 1990
Availability: Available from (1) as Paper EN 35712 ORA
Record Number: 199011696 / Last updated on: 1994-12-02
Original language: en
Available languages: en