Design study of a quasi-optical launcher for 2 MW, 170 GHz coaxial cavity gyrotron

摘要

In this paper, design study of a quasi-optical launcher (QOL) for a 2 MW, 170 GHz coaxial cavity gyrotron designed for plasma heating application in the experimental tokamak is presented. The operating mode is chosen as TE_34,19. The launcher is designed for converting the higher order operating mode into a linearly polarized Gaussian like beam. Design parameters of the launcher is numerically optimized through a commercial software Launcher Optimization Tool (LOT). The designed launcher efficiently converts the operating mode into Gaussian like beam with a minimum diffraction loss.