Title :
Progress towards optimization of phase-correcting mirrors for a multi-frequency gyrotron
Author :
Yang, X. ; Arnold, A. ; Dammertz, G. ; Heidinger, R. ; Koppenburg, K. ; Piosczyk, B. ; Prinz, O. ; Wagner, D. ; Thumm, M.
Author_Institution :
Forschungszentrum Karlsruhe, Assoc. EURATOM-FZK, Karlsruhe, Germany
Abstract :
The newly designed CVD-diamond Brewster window of the FZK multi-frequency gyrotron requires the existing mirror system to be modified to optimize the transmission through the window aperture. Intensive calculations have been done for this purpose; nine operating modes between 105 GHz (TE17.6) and 143 GHz (TE23.8) have a nearly fundamental Gaussian distribution at the window. Simulation results show this QO mode converter can be used for the broadband operation of a multi-frequency 1 MW gyrotron.
Keywords :
gyrotrons; mirrors; optical design techniques; optical windows; 1 MW; 105 to 143 GHz; CVD diamond Brewster window; FZK multifrequency gyrotron; Gaussian distribution; QO mode converter; broadband operation; phase-correcting mirror optimization; window aperture; Apertures; Design optimization; Gaussian distribution; Gyrotrons; Magnetic fields; Mirrors; Plasmas; Radio frequency; Structural beams; Windows;
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.2005.1572693