Experimental study of the optical properties of a low-temperature neon plasma diagnostics and analysis of the state of a nonequilibrium plasma
Nonequilibrium, atmospheric-pressure neon plasmas with temperatures of (16--27)x10/sup 3/ /sup 0/K and electron densities of (0.7--9)x10/sup 16/ cm/sup -3/ are produced in a cold-wall stabilized electric arc and studied for the first time. The density and temperature of the electrons and the populations of a number of excited states are measured and the temperature of the heavy particles and the population of the ground state are estimated. A small admixture of hydrogen is demonstrated to have a significant effect on the state parameters of the plasma. An ionization type instability is realized in the plasma and the state of the plasma is well described by a partial local thermodynamic equilibrium model. The inhomogeneity caused by the small transverse dimension of the plasma is a result of ambipolar diffusion of particles to the wall, which exceeds volume recombination by two orders of magnitude.
- Research Organization:
- High-Temperature Institute, Academy of Sciences of the USSR
- OSTI ID:
- 6559915
- Journal Information:
- High Temp. (Engl. Transl.); (United States), Journal Name: High Temp. (Engl. Transl.); (United States) Vol. 18:3; ISSN HITEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CURRENTS
DATA
DIFFUSION
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRON DENSITY
ELECTRON TEMPERATURE
ELEMENTS
ENERGY LEVELS
EQUILIBRIUM
EXCITED STATES
EXPERIMENTAL DATA
FLUIDS
GASES
GROUND STATES
HYDROGEN ADDITIONS
INFORMATION
INSTABILITY
MATHEMATICAL MODELS
MEDIUM PRESSURE
NEON
NON-EQUILIBRIUM PLASMA
NONMETALS
NUMERICAL DATA
OPTICAL PROPERTIES
PARTICLE MODELS
PHYSICAL PROPERTIES
PLASMA
PLASMA INSTABILITY
RARE GASES
STATISTICAL MODELS
THERMODYNAMIC MODEL
ULTRAHIGH TEMPERATURE
WALLS