Investigation of scandate cathodes: emission, fabrication, and activation processes

Top-layer cathodes have been shown to exhibit work function values in the 1.5-eV range near 1100 K. Emission from cathodes made by sputter deposition of a Sc/sub 2/O/sub 3//W layer on top of an impregnated cathode were limited by the deposition conditions that cause dissociation of Sc/sub 2/O/sub 3/...

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Veröffentlicht in:	IEEE transactions on electron devices 1989-01, Vol.36 (1), p.209-214
Hauptverfasser:	Gibson, J.W., Haas, G.A., Thomas, R.E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Cathodes Extrapolation Fabrication Geometry Laboratories Plugs Sputtering Temperature Testing Thermionic emission
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