Hot Cathode Ionization Gage

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Hot Cathode Ionization Gage

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An ionization gage in which the ions are produced by collisions with electrons emitted from a hot filament (or cathode) and accelerated by an electric field. Also called hot-filament ionization gage, ionization gage , or simply ion gage. </dd>
The Bayard-Alpert ionization gage employs a tube with an electrode structure designed to minimize X-ray induced electron emission from the ion collector. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use