Cyclotron-autoresonance maser with a wavelength of 2.4 mm
Abstract
Experimental and theoretical results from a study of a cyclotron auto-resonance maser (CARM) with a 2 mm source using H(4,1) as the working mode are reported. Formulations are devised for the startup current with a cylindrical resonator and a hollow electron beam, and for the relation between the inertial and force-induced electron bunching. A high-current accelerator with a 100 nsec electron beam pulsed length, energy range of 500-600 keV, and a current adjustable from 0.3-1.5 kA was used. Distortion and ohmic quality factors in the resonator fitted with Bragg mirrors were 3000 and 1000, respectively, for the H(4,1) mode. The data confirmed 2.4 mm emissions that were stable, produced 10 MW power at an efficiency of 2 percent, and displayed a pulse length of 20-30 nsec.
- Publication:
-
Technical Physics Letters
- Pub Date:
- November 1982
- Bibcode:
- 1982TePhL...8..596B