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

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2008.4665740

Filename

4665740