Cathodic voltage drop in a non-self-sustained discharge
Journal Article
·
· J. Appl. Mech. Tech. Phys. (Engl. Transl.); (United States)
The non-self-sustained discharge, maintained by an electron beam, is widely used in gas lasers. The cathodic space-charge layer has a determining effect on the current flow between the electrodes. The calculation of the parameters of the layer reduces to the solution of a system of nonlinear continuity and Poisson equations with the appropriate boundary conditions. This paper describes a mathematical formulation for calculating the cathodic voltage drop under these conditions in a model which incorporates the electron, ion, and beam current densities, the rate of non-self-sustained ionization, the thickness of the space-charge layer at the cathode, the first Townsend coefficient, and the coefficient of secondary electron emission.
- OSTI ID:
- 5791543
- Journal Information:
- J. Appl. Mech. Tech. Phys. (Engl. Transl.); (United States), Journal Name: J. Appl. Mech. Tech. Phys. (Engl. Transl.); (United States) Vol. 27:2; ISSN JMPYA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
BEAM CURRENTS
BEAMS
CATHODES
CHARGED PARTICLES
CONTINUITY EQUATIONS
CURRENT DENSITY
CURRENTS
DIFFERENTIAL EQUATIONS
ELECTRIC DISCHARGES
ELECTRICAL PUMPING
ELECTRODES
ELECTRON BEAM PUMPING
ELECTRON BEAMS
ELECTRON DENSITY
ELECTRON EMISSION
ELECTRON MOBILITY
ELEMENTS
EMISSION
EQUATIONS
FLUIDS
GAS LASERS
GASES
GLOW DISCHARGES
ION DENSITY
ION MOBILITY
IONIZATION
IONS
LASERS
LEPTON BEAMS
MATHEMATICAL MODELS
MOBILITY
NITROGEN
NITROGEN IONS
NONMETALS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PARTICLE MOBILITY
POISSON EQUATION
PUMPING
SECONDARY EMISSION
SPACE CHARGE
TOWNSEND DISCHARGE
VOLTAGE DROP
420300* -- Engineering-- Lasers-- (-1989)
BEAM CURRENTS
BEAMS
CATHODES
CHARGED PARTICLES
CONTINUITY EQUATIONS
CURRENT DENSITY
CURRENTS
DIFFERENTIAL EQUATIONS
ELECTRIC DISCHARGES
ELECTRICAL PUMPING
ELECTRODES
ELECTRON BEAM PUMPING
ELECTRON BEAMS
ELECTRON DENSITY
ELECTRON EMISSION
ELECTRON MOBILITY
ELEMENTS
EMISSION
EQUATIONS
FLUIDS
GAS LASERS
GASES
GLOW DISCHARGES
ION DENSITY
ION MOBILITY
IONIZATION
IONS
LASERS
LEPTON BEAMS
MATHEMATICAL MODELS
MOBILITY
NITROGEN
NITROGEN IONS
NONMETALS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PARTICLE MOBILITY
POISSON EQUATION
PUMPING
SECONDARY EMISSION
SPACE CHARGE
TOWNSEND DISCHARGE
VOLTAGE DROP