Complex dynamics of gyrotron with non-fixed structure

In this work the results of nonstationary processes investigation in relativistic electron generator-gyrotron with non-fixed field structure are presented. As distinct from previous works it was taken into account the realistic dependence of reflections coefficient from input and output devices irregularity, which is achieved by using received previously nonstationary non-local in time domain boundary conditions. The numerical simulation of nonstationary processes in gyrotron with non-fixed field structure is carried out.