Surface discharge plasma cathode electron beam generating assemb

Details Surface discharge plasma cathode electron beam generating assemb Surface discharge plasma cathode electron beam generating assemb

1990-10-04

1993-04-06

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device load with fluent material supply to the...

Electron or ion source

31511121, 31323131, 361230, 361235, 250326, H05H 124

Patent

active

052006700

ABSTRACT:
A surface discharge plasma cathode electron beam generating assembly (1) includes an anode (2) maintainable at a substantially constant first potential, a cathode device (3) having a first electrically conductive member (4), a dielectric member (5) at least partially surrounding the first member (4) and electrically conductive means (6) located on the outer surface of the dielectric member (5) and insulated therefrom. A capacitative divider circuit (7) is provided for maintaining the first electrically conductive member (4) at a second potential different from the first potential and for maintaining the electrically conductive means (6) at a high negative third potential relative to the first and second potentials.

REFERENCES:
patent: 3845307 (1974-10-01), Gallo
patent: 4538204 (1985-08-01), Weber
patent: 4656356 (1987-04-01), Yoda et al.
patent: 4700261 (1987-10-01), Nagase et al.
patent: 4816684 (1989-03-01), Breton
patent: 4841146 (1989-06-01), Gundlach et al.
WO87/02451 A1 Dennison See FIG. 1-3.
WO87/02452 A1 Dennison See FIG. 1.
WO82/02983 A1 Dennison See FIGS. 4 and 11.

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