Method and apparatus for reducing noise in crossed- field...

Details Method and apparatus for reducing noise in crossed- field... Method and apparatus for reducing noise in crossed- field...

H - Electricity

01

J

353/3, 330/47

H01J 25/34 (2006.01) H01J 25/44 (2006.01)

Patent

CA 1099348

PATENT APPLICATION of George K. Farney and F. A. Feulner for METHOD AND APPARATUS FOR REDUCING NOISE IN CROSSED-FIELD AMPLIFIERS Abstract Noise in reentrant-stream crossed-field amplifiers is suspected of being generated by electrons re-entering the interaction region with large amplitude cycloidal motion near the slow-wave circuit. Means to increase the electric field in a portion of the drift region preceding the circuit lowers the noise, presumably by collecting these electrons. The field may be increased by decreasing the spacing bewteen cathode and drift electrode or by applying a bias voltage on an insulated electrode. rbn2C9276 - 1 - 76-44

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