TITLE

Electron yield of glow discharge cathode materials under helium ion bombardment

AUTHOR(S)
Szapiro, B.; Rocca, J. J.; Prabhuram, T.
PUB. DATE
August 1988
SOURCE
Applied Physics Letters;8/1/1988, Vol. 53 Issue 5, p358
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The secondary electron emission coefficient of materials for helium ion bombardment in the energy range 0.5–20 keV was measured for the surface conditions of cathodes in high voltage glow discharges. The materials studied are oxidized aluminum, oxidized magnesium, a molybdenum-aluminum oxide sintered composite, molybdenum, stainless steel, copper, gold, and graphite. Each sample was surface conditioned by operating it as cathode of a helium glow discharge shortly before the electron yield measurement. The results are relevant to the modeling of glow discharges and the design of cold cathode electron guns.
ACCESSION #
9827619

 

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