Title :
Analysis of Radiation Pattern of 300 GHz CW Gyrotron FU CW I
Author :
Saito, Takashi ; Nakano, T. ; Sakai, Kenji ; Ogawa, Isamu ; Mitsudo, S. ; Tatematsu, Y.
Author_Institution :
Univ. of Fukui, Fukui
Abstract :
300 GHz CW gyrotron FU CW I has been developed and installed in University of Fukui. Performance test has been carried out and the maximum power of 1.75 kW / CW has been attained. The radiation pattern of the output beam has been measured in detail with an infrared camera. It has been confirmed that the output beam propagates as a Gaussian beam with high purity. However, the output power is radiated into multiple directions within a range of the magnetic field strength at the cavity, which indicates simultaneous oscillation of competing cavity modes.
Keywords :
gyrotrons; millimetre wave tubes; CW gyrotron FU CW I; Gaussian beam; frequency 300 GHz; infrared camera; magnetic field strength; power 1.75 kW; radiation pattern; Cathodes; Ceramics; Frequency; Gyrotrons; Pattern analysis; Power generation; Power measurement; Testing; Virtual colonoscopy; Voltage; CW; Gaussian beam; ceramic sintering; gyrotron; infrared camera; tera Hertz;
Conference_Titel :
Vacuum Electronics Conference, 2007. IVEC '07. IEEE International
Conference_Location :
Kitakyushu
Print_ISBN :
1-4244-0633-1
DOI :
10.1109/IVELEC.2007.4283357
