Collision term of the Fokker-Planck equation in a magnetic field

Conclusions

In this paper we have presented an approximate analytic calculation of the magnetic scalar potentialsg ^B andh ^B for a two-component plasma. We have shown that a “modified” Debye potential removes the well-known divergence of the friction coefficient forV _ab∥ → 0, the Coulomb loganithm entering into the equation for the magnetic scalar potentials in a natural way, without cutting off the k integration. In the course of the calculation, an “exponential” approximation of the dominant terms of G^B andH ^B was used. This approximation has not modified the Coulomb logarithm (cf. for example [2, 4, 5]). But the influence of the magnetic field is involved in the.