NASA NTRS · 19710013714
Electronic cathode having a brush-like structure and a relatively thick oxide emissive coating Patent
Abstract
Electronic cathodes for use in electron bombardment ion thrustors
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Kerslake, W. R.. 1968-11-26. Electronic cathode having a brush-like structure and a relatively thick oxide emissive coating Patent. https://ntrs.nasa.gov/citations/19710013714
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