Parallel filament electron gun

Details Parallel filament electron gun Parallel filament electron gun

1991-11-22

1993-10-19

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313422, 250396ML, G09G 104, H01J 2970, H01J 314, G21K 108

Patent

active

052549119

ABSTRACT:
A novel parallel-filament type electron gun for electron beam irradiation accelerators or generators and the like having a plurality of longitudinally extending parallel transversely spaced substantially co-planar similar filaments for generating electrons and disposed between a lower co-extensive extractor grid and an upper co-extensive electrostatic lens surface for shaping the electron beam profile, and with constructional features that enable variable width and extremely wide guns to be achieved and with improved beam uniformity.

REFERENCES:
patent: 3702412 (1972-11-01), Quintal
patent: 3746909 (1973-07-01), Runtzel et al.
patent: 3749967 (1973-07-01), Douglas-Hamilton et al.
patent: 3863163 (1975-01-01), Farrell et al.
patent: 3956712 (1976-05-01), Hant
patent: 4077054 (1978-02-01), Endriz
patent: 4100450 (1978-07-01), Frutiger et al.
patent: 4719388 (1988-01-01), Oess
patent: 4812716 (1989-03-01), Miyama et al.

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