Final Report Advanced Quasioptical Launcher System

Jeffrey Neilson

关键词: ANTENNAS;    CYCLOTRONS;    DESIGN;    ELECTRONS;    HEATING;    MICROWAVE AMPLIFIERS;    MIRRORS;    POWER TRANSMISSION LINES;    WAVEGUIDES gyrotron;    Gaussian;    quasi-opti;   

DOI  :  10.2172/1011381
RP-ID  :  DOE/ER84181
PID  :  OSTI ID: 1011381
Others  :  TRN: US1201625

美国|英语

来源: SciTech Connect

【 摘 要 】

This program developed an analytical design tool for designing antenna and mirror systems to convert whispering gallery RF modes to Gaussian or HE11 modes. Whispering gallery modes are generated by gyrotrons used for electron cyclotron heating of fusion plasmas in tokamaks. These modes cannot be easily transmitted and must be converted to free space or waveguide modes compatible with transmission line systems.This program improved the capability of SURF3D/LOT, which was initially developed in a previous SBIR program. This suite of codes revolutionized quasi-optical launcher design, and this code, or equivalent codes, are now used worldwide. This program added functionality to SURF3D/LOT to allow creating of more compact launcher and mirror systems and provide direct coupling to corrugated waveguide within the vacuum envelope of the gyrotron. Analysis was also extended to include full-wave analysis of mirror transmission line systems. The code includes a graphical user interface and is available for advanced design of launcher systems.