Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1981-04-14
1983-08-09
Chatmon, Jr., Saxfield
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 35, H01J 2302
Patent
active
043981224
ABSTRACT:
The present invention relates to multistage vacuum collectors for ultra-high frequency tubes.
Each electrode of the collector comprises two walls which are axially symmetrical with respect to the beam propagation axis and which are superimposed along said axis. The retarding path of the electrons due to the decreasing potentials of the electrodes is thus located in a small volume space between the facing walls of two adjacent electrodes. A plurality of permanent magnets positioned outside the vacuum enclosure above the final electrode produce an asymmetrical magnetic field with respect to the propagation axis.
Application to travelling-wave tubes and klystrons.
REFERENCES:
patent: 2325865 (1943-08-01), Litton
patent: 2610306 (1952-09-01), Touraton et al.
patent: 2888596 (1959-05-01), Rudenberg
patent: 3175120 (1965-03-01), Wendt
patent: 3202863 (1965-08-01), Dunn et al.
patent: 3368104 (1968-02-01), McCullough
patent: 3702951 (1972-11-01), Kosmahl
"Improvement of Beam-Tube Performance by Collector Potential Depression, and a Novel Design", by Hansen, IRE Transactions on Electron Devices, Oct. 1960, pp. 282-288.
"Thomson-CSF"
Chatmon, Jr. Saxfield
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