Modeling of stochastic processes in gyrotrons

This article reviews theoretical studies on stochastic processes in gyrotrons. Three different types of stochasticity related to gyrotron operation are considered. First, stochasticity in electron residual energies may develop at the resonator exit. Second, stochastic temporal radio-frequency oscillations can set in. Third, the high-frequency field structure can exhibit spatial chaos in the azimuthal direction.