Microchannel ion gun

Details Microchannel ion gun Microchannel ion gun

1979-06-29

1980-12-16

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

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

Electron or ion source

313105CM, 313230, 313362, H01J 2702, H01J 4302

Patent

active

042400074

ABSTRACT:
The present invention describes an ion gun which is capable of producing relatively high density ion currents. The ion gun employs at least one capillary duct the surface of which is semiconducting and has secondary electron emission coefficient greater than one to generate ions from a source of an ionizable material and to accelerate the ions so generated.

REFERENCES:
patent: 2945951 (1960-07-01), Bright
patent: 2960614 (1960-11-01), Mallinckrodt
patent: 2969480 (1961-01-01), Klein
patent: 3233404 (1966-02-01), Huber et al.
patent: 3271661 (1966-09-01), Goodrich et al.
patent: 3387176 (1968-06-01), Currie et al.
patent: 3597650 (1971-08-01), Anderson et al.
patent: 3617789 (1971-11-01), Middleton et al.
patent: 4031428 (1977-06-01), Tokudome et al.
Bouchard et al., Self-Triggered Channel Ion Source, Rev. Sci. Instrum., vol. 50, No. 1, Jan., 1979, pp. 99-101.
Ono et al., The Energy Dependence of Secondary Emission . . . Power Formula, J. Phys. D:Appl. Phys., vol. 12, pp. 619-631, 1979.
Becker et al., Preparation and Characteristics of a Channel Electron Multiplier, Rev. Sci. Instrum., vol. 43, No. 11, Nov., 1972, pp. 1587-1589.

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