Abstract
Abstract Non-linear analysis of a gyrotron using an axially grooved rectangular waveguide operating at the high harmonic l of the cyclotron frequency Ωc is given. We use 120 electrons in the simulation of the electron beam. The growth rate, electric field, relativistic factor γ and phase factor are calculated as functions of the slip parameter χ = lΩ0ωγ0 for the chosen optimized operating parameters of the gyrotron. Efficiency of ∼20% in the electron-beam frame is possible for the sixth harmonic of the cylotron frequency which increases to 58% in the second harmonic.
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