Thermionic emitter and method of manufacture thereof

Details Thermionic emitter and method of manufacture thereof Thermionic emitter and method of manufacture thereof

H - Electricity

01

J

358/9

H01J 49/26 (2006.01)

Patent

CA 2014139

A thermionic emitter for providing positive ions incorporates 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. As a result, the thermionic emitter overcomes the problem of generating positive ions with low power consumption.

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