Title :
Investigations on mode converters for multi-frequency gyrotrons
Author :
Prinz, H.O. ; Arnold, A. ; Dammertz, G. ; Koppenburg, K. ; Thumm, M.
Author_Institution :
Assoc. EURATOM-FZK, Inst. fur Hochleistungsimpuls und Mikrowellentechnik, Eggenstein-Leopoldshafen, Germany
Abstract :
Frequency step-tunable megawatt gyrotrons are of great interest for controlling instabilities in magnetically confined fusion plasmas. The important key for realization of such long-pulse gyrotrons is to minimize the stray radiation inside the gyrotron. Therefore the efficiency of the gyrotron´s dimpled-wall antenna has to be optimized for the set of operating modes.
Keywords :
frequency stability; gyrotrons; microwave frequency convertors; multifrequency antennas; dimpled-wall antenna; instability control; magnetically confined fusion plasma; mode converter; multi-frequency gyrotron; stray radiation; Electron optics; Frequency; Gyrotrons; Heating; Mirrors; Optical resonators; Plasma confinement; Plasma devices; Plasma waves; Tuning;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572526
