Thermionic ionization source
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United States of America Patent
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May 22, 1990
Grant Date -
N/A
app pub date -
Nov 15, 1988
filing date -
Nov 15, 1988
priority date (Note) -
Expired
status (Latency Note)
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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.
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