NASA NTRS · 19700000023
Improved magnetron cold-cathode ion source
Abstract
Cold cathode ionization source generates smaller amounts of spurious gases and has a higher sensitivity than commonly used hot-filament ion sources. Photon and X-ray background noise are reduced below detectable levels.
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Roehrig, J., Torney, F.. 1970-04-01. Improved magnetron cold-cathode ion source. https://ntrs.nasa.gov/citations/19700000023
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