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The Influence of the Core Material on the Thermionic Emission of Oxide Cathodes

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1 Author(s)
Poehler, H.A. ; General Precision Laboratory, Inc., Pleasantville, N.Y.

The influence of the core material on the thermionic emission of oxide cathodes was investigated. Alloys of nickel with 4.8 per cent Mn, 4.0 per cent A1, 0.38 per cent Mg, and 3.5 per cent W were used as cores, with pure electrolytic nickel as a core being used as a control. The experiments showed that both the dc and pulsed emission of oxide cathodes are dependent on the core to a marked degree.

Published in:

Proceedings of the IRE  (Volume:40 ,  Issue: 2 )