Method of stochastic differential equations for calculation of collisional plasma kinetics

Presented is the algorithm for determination of emission current density and singularity function while solving the problem on focusing the relativistic electron beam in cylindrical air waveguide. Algorithms are built up in such a way that their accuracy is not lower than the accuracy of determination of other characteristics of the whole problem. Computer memory necessary for calculation on real nets (10-20 points for the unit of waVeguide length) constitutes 10-15 thousand words. Shown is effectivity of the proposed algorithm