Method of and apparatus for generating uniform elongated electro

Details Method of and apparatus for generating uniform elongated electro Method of and apparatus for generating uniform elongated electro

1991-07-29

1992-06-30

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Plural concentrating, accelerating, and/or de-accelerating...

313299, 328227, H01J 2946, H01J 2956

Patent

active

051266334

ABSTRACT:
A novel electron beam apparatus and technique wherein a plurality of longitudinally extending heated filaments is employed, each similarly offset laterally of a central longitudinal axis, but with successive filaments alternately disposed on opposite sides of said axis and cooperating with a first low velocity accelerating stage comprising staggered grid slots and openings, and a high velocity second accelerating stage to provide long uniform longitudinal electron beams.

REFERENCES:
patent: 3702412 (1972-11-01), Quintal
patent: 3863163 (1975-01-01), Farrell et al.
patent: 4100450 (1978-07-01), Frutiger et al.

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