Harmonic results of a 460 GHz gyrotron

Author

Hornstein, Melissa K. ; Bajaj, Vikram S. ; Griffin, Robert G. ; Kreischer, Kenneth E. ; Mastovsky, Ivan ; Shapiro, Michael A. ; Sirigiri, Jagadishwar R. ; Temkin, Richard J.

Author_Institution

Massachusetts Inst. of Technol., Cambridge, MA, USA

fYear

2004

fDate

27-29 April 2004

Firstpage

26

Lastpage

27

Abstract

We report the first results of a 460 GHz second harmonic gyrotron. In microsecond pulse length operation at 13 kV and 110 mA, power levels in the order of 1 W have been observed at the TE_2,6 mode at 456.2 GHz and the TE_0,6 mode at 458.6 GHz. Modes at the fundamental, including the TE_0,3 at 238 GHz and the TE_2,3 at 233 GHz, have output powers up to 70 W. The TE_5,2 mode was observed to tune continuously in frequency from 246 GHz to 248 GHz. The gyrotron is being processed for CW operation. At present, more than 12 W have been obtained in CW operation in the TE_2,3 mode at 233 GHz.

Keywords

gyrotrons; harmonics; submillimetre wave generation; submillimetre wave tubes; tuning; 1 W; 110 mA; 12 W; 13 kV; 233 GHz; 238 GHz; 246 to 248 GHz; 456.2 GHz; 458.6 GHz; 460 GHz; 70 W; CW operation; TE_0,3 mode; TE_0,6 mode; TE_2,3 mode; TE_2,6 mode; continuous frequency tuning; fundamental mode operation; microsecond pulse length operation; second harmonic gyrotron; Frequency; Gyrotrons; Magnetic field measurement; Nuclear and plasma sciences; Oscillators; Power measurement; Power system harmonics; Pulse measurements; Pyroelectricity; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International

Print_ISBN

0-7803-8261-7

Type

conf

DOI

10.1109/IVELEC.2004.1316180

Filename

1316180