Sensitivity Analysis of Electron Beam Velocity Ratio for 42 GHz, 200 kW Gyrotron

摘要

A 42 GHz, 200 kW gyrotron has been designed recently for Indian TOKAMAK system. The velocity ratio of the electron beam (α) is a critical parameter for high efficiency and high power gyrotron operation. The velocity ratio varies with the variation of the beam parameters. The output power and efficiency of gyrotron depends highly on the velocity ratio. This paper presents the sensitivity analysis of velocity ratio with respect to beam parameters, space charge parameters, start up scenario in terms of start oscillation current, output power and efficiency.