Electron-bombardment ion source including alternating potential

Details Electron-bombardment ion source including alternating potential Electron-bombardment ion source including alternating potential

1974-11-18

1976-04-20

Demeo, Palmer C.

Electric lamp and discharge devices: systems

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

Electron or ion source

60202, 315169R, 315260, H05H 124

Patent

active

039522288

ABSTRACT:
An ion source includes apparatus that defines a region in which a supply of ions are produced. An apertured grid is disposed at one end of the region. A potential difference is impressed between the grid and the region so as to accelerate ions out of the region through the grid as a plurality of beamlets, the grid serving to focus those beamlets. To cyclically vary the degree of focus of the beamlets, the system as embodied further includes an arrangement for alternating a potential on the grid relative to a potential elsewhere in the ion source and to which the ions are subjected.

REFERENCES:
patent: 3156090 (1964-11-01), Kaufman
patent: 3159967 (1964-12-01), Petrick

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