Anomalously high emissivity of a thermionic cathode for an arc discharge in inert gases
Journal Article
·
· High Temp. (USSR) (Engl. Transl.); (United States)
OSTI ID:7297587
The mechanism underlying the transmission of current to the cathode for an arc discharge in inert gases is considered on the basis of the diffusion equations. For the range of parameters indicated in 1, an approximate system of algebraic equations is obtained for determining the value of the total current passing to the cathode. It is shown that the results of the experiments described in 1 may be explained if allowance is made for the ionic current from the discharge plasma, no anomalously high emissivity of the thermionic cathode then being present. Numerical calculations are carried out for certain values of the parameters of 1. The results agree closely with the experimental data 1. (AIP)
- Research Organization:
- Moscow
- OSTI ID:
- 7297587
- Journal Information:
- High Temp. (USSR) (Engl. Transl.); (United States), Journal Name: High Temp. (USSR) (Engl. Transl.); (United States) Vol. 13:3; ISSN HITEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
ARGON
CATHODES
CRYOGENIC FLUIDS
CURRENTS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
ELEMENTS
EMISSION
EMISSIVITY
FLUIDS
HELIUM
KRYPTON
METALS
NEON
NONMETALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RARE GASES
REFRACTORY METALS
SURFACE PROPERTIES
THERMIONIC EMISSION
TRANSITION ELEMENTS
TUNGSTEN
XENON
700106* -- Fusion Energy-- Plasma Research-- Plasma Production-- (-1987)
ARGON
CATHODES
CRYOGENIC FLUIDS
CURRENTS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
ELEMENTS
EMISSION
EMISSIVITY
FLUIDS
HELIUM
KRYPTON
METALS
NEON
NONMETALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
RARE GASES
REFRACTORY METALS
SURFACE PROPERTIES
THERMIONIC EMISSION
TRANSITION ELEMENTS
TUNGSTEN
XENON