Collector-output for hollow beam electron tubes

Details Collector-output for hollow beam electron tubes Collector-output for hollow beam electron tubes

1983-07-01

1984-07-17

Dixon, Harold

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Combined cathode ray tube and circuit element structure

315 50, H01J 2302

Patent

active

044608462

ABSTRACT:
In a microwave electron tube such as a gyrotron, a hollow beam of electrons passes thru the interaction cavity into an output waveguide carrying the generated energy in a mode with circular electric fields. According to the invention, the beam is caused to expand, passing thru a gap in the waveguide to be collected on a larger, surrounding collector. The collector energy is thus reduced. The wave energy jumps the gap and continues down the waveguide. Wave energy leaking into the collector may be absorbed by lossy material therein or be carried off by waveguides to external loads.

REFERENCES:
patent: 2486398 (1949-11-01), Feenberg

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