Title of article
Scandium oxide coated polycrystalline tungsten studied using emission microscopy and photoelectron spectroscopy
Author/Authors
Wan ، نويسنده , , Congshang and Vaughn، نويسنده , , Joel M. and Sadowski، نويسنده , , Jerzy T. and Kordesch، نويسنده , , Martin E.، نويسنده ,
Pages
5
From page
106
To page
110
Abstract
Thermionic electron emission from 200 to 500 nm thick coatings of scandium oxide on tungsten foil have been examined in thermionic emission microscopy, spectroscopic photoelectron microcopy, synchrotron radiation and ultraviolet photoelectron spectroscopy (UPS). A clear dependence of the scandium oxide-W electron yield on the grain orientation of the polycrystalline tungsten is observed in thermionic emission and photoelectron emission.
Keywords
Emission microscopy , thermionic emission , Thermionic cathodes , Scandium oxide , Tungsten
Journal title
Astroparticle Physics
Record number
2043728
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