Title :
Operation improvement of CW 300 GHz gyrotron FU CW I
Author :
Saito, Teruo ; Nakamo, Tomoaki ; Tatematsu, Yoshinori ; Mitusdo, Seitaro ; Idehara, Toshitaka ; Zapevalov, Vladimir E.
Author_Institution :
Res. Center for Dev. of Far-Infrared Region, Univ. of Fukui, Fukui
Abstract :
A 300 GHz fully continuous wave gyrotron FU CW I has been developed for application to material processing in the millimeter to submillimeter wave range. In the operation test before commissioning, the maximum output power was 1.7 kW, which was less than the designed output power of 3.5 kW. Then, efforts have been done to understand the oscillation characteristics of this gyrotron. On the basis of the obtained information, the anode current was controlled and the output power has exceeded 2.3 kW. However, power saturation against the beam voltage still remains. Adjustment of the electron beam radius was tried next and power transition phenomenon was observed.
Keywords :
gyrotrons; millimetre wave devices; anode current; beam voltage; continuous wave gyrotron; electron beam radius; frequency 300 GHz; material processing; output power; power 1.7 kW; power 3.5 kW; power saturation; power transition; Anodes; Diodes; Electron beams; Fluctuations; Gyrotrons; Materials processing; Physics; Power generation; Testing; Voltage;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665740
