Hollow-anode ion-electron source

Details Hollow-anode ion-electron source Hollow-anode ion-electron source

1987-10-06

1989-10-03

Berman, Jack I.

Radiant energy

Ion generation

Field ionization type

250424, 250426, 31511181, H01J 2702

Patent

active

048719188

ABSTRACT:
An ion-electron source based on a new type of gas discharge in a hollow anode is presented. A small surface of the exit aperture and a high density of the current enable high brightness of the source; high efficiency and simple construction make possible low production price and long lifetime of the source.

REFERENCES:
patent: 2821662 (1958-01-01), Bell, Jr. et al.
patent: 3411035 (1968-11-01), Necker et al.
patent: 3944873 (1976-03-01), Franks et al.
patent: 4475063 (1984-10-01), Aston
patent: 4596945 (1986-06-01), Schumzcher et al.
patent: 4647818 (1987-03-01), Ham
patent: 4658143 (1987-04-01), Tokiguchi et al.
patent: 4739214 (1988-04-01), Barr

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