Frequency-tunable, high-power microwave emission from cyclotron autoresonance maser oscillation and gyrotron interactions

Author

Wang, J.G. ; Gilgenbach, R.M. ; Choi, J.J. ; Outten, C.A. ; Spencer, T.A.

Author_Institution

Dept. of Nucl. Eng., Michigan Univ., Ann Arbor, MI, USA

Volume

17

Issue

6

fYear

1989

fDate

12/1/1989 12:00:00 AM

Firstpage

906

Lastpage

908

Abstract

The authors report experimental observations of high-power microwave emission from both the high-frequency cyclotron autoresonance maser (CARM) oscillation and the low-frequency gyrotron interaction. High-power (3-10 MW) microwave emission is attributed to the CARM mechanism, which is magnetically tunable through discrete axial cavity modes from 15 through 16.7 GHz. For the same experimental parameters, megawatt-level microwave emission is observed, which is magnetically tunable from 10 through 14 GHz, indicating low-frequency gyrotron oscillation. High-frequency microwave pulse-lengths of up to 0.2 μs have been generated, which is a factor of five greater than those achieved in previous CARM experiments

Keywords

gyrotrons; masers; microwave generation; 0.2 mus; 1 MW; 10 to 14 GHz; 15 to 16.7 GHz; 3 to 10 MW; cyclotron autoresonance maser oscillation; discrete axial cavity modes; frequency tunable high power microwave emission; low-frequency gyrotron interaction; pulse-lengths; Cyclotrons; Dispersion; Electromagnetic heating; Electron beams; Frequency; Gyrotrons; Masers; Oscillators; Plasma accelerators; Pulse modulation;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.41232

Filename

41232