Solid cathode cap for an X-ray tube

Details Solid cathode cap for an X-ray tube Solid cathode cap for an X-ray tube

1975-03-28

1977-07-12

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

313 55, 313311, 313330, H01J 114, H01J 1906

Patent

active

040356850

ABSTRACT:
A cathode for an X-ray tube including an emitter and a cap of a ceramic material such as Al.sub.2 O.sub.3 surrounding the emitter and having an open part surrounding an exit portion of the emitted electron beam.

REFERENCES:
patent: 2310811 (1943-02-01), Schantl et al.
patent: 2378164 (1945-06-01), Van Den Bosch et al.
patent: 2732512 (1956-01-01), Briggs, Jr.
patent: 2905841 (1959-09-01), Meyer et al.
patent: 3631290 (1971-12-01), Loeffler
patent: 3646380 (1972-02-01), Hartl
patent: 3721847 (1973-03-01), Terasawa
patent: 3906271 (1975-09-01), Aptt, Jr.

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