Computer simulation of stationary states of nonlinear axial-symmetric beams

Self-consisten algorithm and PL/1(0) program of analyzing stationary states of nonlaminar axial-symmetric high-current beams has been developed. Calculation of beam eigenfields is conducted according to Gauss theorem and Ampere law. Distribution of current density in random cross-sections is calculated by the method of compressed current tubes. The system of motion equations is integrated simultaneously for all trajectories by Runge-Kutta method of the fifth order in combination with field equations. The calculations resulted to phase pictures of the beam and distribution of current density in random cross-sections