Thermionic ionization source

Details Thermionic ionization source Thermionic ionization source

1988-11-15

1990-05-22

Wieder, Kenneth

Electric lamp and discharge devices

Electrode and shield structures

Filament or resistance heated electrodes

250423R, H01J 102, H01J 2726, H01J 3708

Patent

active

049280333

ABSTRACT:
A thermionic emitter for providing positive ions has been described incorporating a mixture of beta-alumina and inert material such as charcoal positioned on a filament for heating the mixture. Alternately the invention may incorporate beta-alumina with inert material such as nickle deposited in selected areas. The invention overcomes the problem of generating positive ions with low power consumption.

REFERENCES:
patent: 4774413 (1988-09-01), Okubo et al.
patent: 4783595 (1988-11-01), Seidl

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