Title of article
Correlation of emission capability and longevity of dispenser cathodes with characteristics of tungsten powders
Author/Authors
Irina P. Melnikova، نويسنده , , Victor G. Vorozheikin، نويسنده , , Dmitry A. Usanov، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
6
From page
59
To page
64
Abstract
The intercorrelation of tungsten powder properties, such as grain size, distribution and morphology, and porous matrix parameters with electron emission capability and longevity of Ba dispenser cathodes are investigated for three different grain morphologies. Best results of tungsten cathode life were found for isoaxis polyhedron morphology in combination with certain powder and matrix parameters.
Keywords
Dispenser cathodes , Tungsten powder , Porosity , Granules , Cathode life , Size of porous
Journal title
Applied Surface Science
Serial Year
2003
Journal title
Applied Surface Science
Record number
998561
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