Electron emission from glow-discharge cathode materials due to neon and argon ion bombardment
We have measured the electron yields of 7 glow-discharge cathode materials under bombardment by neon and argon ions with energies between 1 and 20 keV. The surfaces of the samples were conditioned by operating the materials as cold cathodes in a high-voltage glow discharge before the electron yield measurement. The materials studied are oxidized magnesium, oxidized aluminum, a molybdenum-aluminum oxide sintered composite, molybdenum, stainless steel, copper, and graphite. The dependence of electron yield on ion velocity was found to be approximately linear for all materials and gases, with the slopes being strongly material dependent. The corresponding glow-discharge current intensities were observed to have a supralinear dependence on the electron yield. The results are relevant to the design and modeling of cold cathode high-voltage glow discharges.
- Research Organization:
- Electrical Engineering Department, Colorado State University, Fort Collins, Colorado 80523
- OSTI ID:
- 6449580
- Journal Information:
- J. Appl. Phys.; (United States), Vol. 65:9
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM OXIDES
ION COLLISIONS
ARGON IONS
COLLISIONS
MAGNESIUM OXIDES
MOLYBDENUM
MOLYBDENUM OXIDES
NEON IONS
STAINLESS STEELS
COPPER
ELECTRIC CURRENTS
ELECTRON EMISSION
ENERGY DEPENDENCE
GLOW DISCHARGES
GRAPHITE
KEV RANGE 01-10
KEV RANGE 10-100
SURFACE PROPERTIES
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM COMPOUNDS
CARBON
CHALCOGENIDES
CHARGED PARTICLES
CURRENTS
ELECTRIC DISCHARGES
ELEMENTAL MINERALS
ELEMENTS
EMISSION
ENERGY RANGE
HIGH ALLOY STEELS
IONS
IRON ALLOYS
IRON BASE ALLOYS
KEV RANGE
MAGNESIUM COMPOUNDS
METALS
MINERALS
MOLYBDENUM COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
STEELS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
656003* - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)