Design and tests of a gyrotron with a radially-extracted electron beam

Author

Neilson, Jeff M. ; Felch, Kevin ; Chu, Tak Sum ; Feinstein, Joseph ; Hess, Carl ; Huey, Hugo E. ; Jory, H.R. ; Mizuhara, Yosuke Maxwell ; Schumacher, Richard

Author_Institution

Vista Res. Inc., Mountain View, CA, USA

Volume

23

Issue

3

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

470

Lastpage

480

Abstract

A high-power gyrotron, employing an output coupling concept where the spent electron beam was extracted radially though a slot in the output waveguide, has been designed and tested. The separation of the collection area for the electron beam from the outgoing microwave power is required to achieve MW-level average power in gyrotrons. The tube employed a TE_22,2,1-mode interaction cavity that was designed for operation at a frequency of 110 GHz. Tests on the tube resulted in an output power level of 470 kW for pulse durations of 2.5 seconds in the desired TE_22,2 mode at 110 GHz. Output power levels of 1 MW were achieved under short-pulse (1 ms) operation,

Keywords

gyrotrons; 1 MW; 1 ms; 110 GHz; 2.5 s; 470 kW; TE_22,2,1-mode; TE_22,2 mode; cavity; high-power gyrotron; microwave power; output coupling; output power; radially-extracted electron beam; Cooling; Cyclotrons; Electromagnetic heating; Electron beams; Electron tubes; Frequency; Gyrotrons; Power generation; Resonance; Testing;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.402342

Filename

402342