A beam-wave interaction simulation for 170GHz Coaxial-Cavity gyrotron

摘要

From the electron motion equations and Maxwell equations, the coaxial gyrotron beam -wave coupling equations are derived and the coaxial gyrotron self-consistent theory of large-signal model is established. Using codes MATLAB, A set of codes is developed and the 170GHz, 1.7MW coaxial gyrotron beam- wave interaction is simulated. Based on self-consistent theory, the field profile, phase and efficiency are calculated. The influence of magnetic field on the beam - wave interaction efficiency are also studied and the results show that the work status of coaxial gyrotron is very sensitive to the magnetic field. The methods and conclusions provide a valuable reference for theoretical studies of other coaxial gyro devices.