Dihedral deflection cathode for an X-ray tube

Details Dihedral deflection cathode for an X-ray tube Dihedral deflection cathode for an X-ray tube

1991-02-01

1993-06-29

Porta, David P.

X-ray or gamma ray systems or devices

Source

Electron tube

378134, 378138, H01J 3506

Patent

active

052241432

ABSTRACT:
The invention relates to X-ray tubes. The cathode for an X-ray tube has two filaments associated with a deflecting and focusing device which comprises at least three metal parts which are electrically insulated from one another and which are raised to electrical voltages. First and second ones of the metal, parts are associated with a first filament, while the second metal part and a third metal part are associated with the second filament.

REFERENCES:
patent: 4065689 (1977-12-01), Pleil
patent: 4685118 (1987-08-01), Furbee et al.
patent: 4823371 (1989-04-01), Grady
patent: 4870671 (1989-09-01), Hershyn
patent: 4894853 (1990-01-01), Dowd
Patent Abstracts of Japan vol. 10, No. 184 (E-415) (2240) Jun. 27 1986 JP-A-61 32338 (Shimadzu Corp) Feb. 15 1986.

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