Electric lamp and discharge devices – With positive or negative ion acceleration – Supplying ionizable material
Patent
1982-11-22
1985-11-05
DeMeo, Palmer C.
Electric lamp and discharge devices
With positive or negative ion acceleration
Supplying ionizable material
313 16, 313230, H01J 3302, H01J 4910
Patent
active
045516502
ABSTRACT:
The field-emission-type ion source according to the present invention comprises an emitter tip, a heater, a reservoir which stores material to be ionized, an extracting electrode situated at the front end of the emitter tip, and a coating-layer which is refractory and anti-reactive with the material to be ionized and which is coated on at least the heater of the emitter tip and heater, in order to prevent their reactions with the material to be ionized.
REFERENCES:
patent: 4088919 (1978-05-01), Clampitt et al.
patent: 4367429 (1983-01-01), Wang et al.
Noda Tamotsu
Okano Hiroshi
Tamura Hifumi
DeMeo Palmer C.
Hitachi , Ltd.
O'Shea Sandra L.
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