Quasi-optical gyrotron having a rotatable mount for providing re

Details Quasi-optical gyrotron having a rotatable mount for providing re Quasi-optical gyrotron having a rotatable mount for providing re

1990-08-21

1992-08-11

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 39, 315 546, 315 553, 315 529, 315 533, 331 79, 333231, H01J 2306, H01J 2320, H01J 2340, H03B 901

Patent

active

051382300

ABSTRACT:
In a quasi-optical gyrotron an electron beam (1) passes along an electron beam axis (2) and in so doing is compressed by a static magnetic field and forced into gyration, so that it excites in a quasi-optical resonator a standing alternating electro-magnetic field of given frequency. The resonator exhibits two mirrors (4a, 4b) arranged opposite to one another on a resonator axis (5) aligned perpendicular to the electron beam axis (2). In order to generate radiation in a wide frequency range, each of the two mirrors (4a, 4b) of the resonator is arranged in each case on a movable mount (8a, 8b) together with at least one further mirror (4c, 4d). In order to set a specific frequency of the alternating field, it is possible for two mirrors (4c, 4d), corresponding to one another and tuned to the desired frequency, to be brought onto the resonator axis by actuating the movable mounts (8a, 8b). Up to six mirrors are preferably attached to a revolver-type rotatable mount which is rotatable about an axis of rotation parallel to the resonator axis.

REFERENCES:
The gyrotron, key component for high-power microwave transmitters, H. G. Mathews, Minh Quang Tran, Brown Boveri Review, Jun. 1987, pp. 3-7.
Proceedings of the International Conference on Infared and Millimeter Waves, conf. 12, Orlando, 14-18 Dec. 1987, IEEE (New York, US) T. A. Hargreaves et al.: "The NRL quasi-optical Gyrotron experiment", pp. 238-239.

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