The radiative transfer of impact broadened spectral lines emitted by an argon plasma described by the local thermodynamic equilibrium appproximation

1965 ◽  
Vol 85 (6) ◽  
pp. 1261-1268 ◽  
Author(s):  
D D Burgess ◽  
J Cooper
Keyword(s):  
Radiative Transfer ◽  
Thermodynamic Equilibrium ◽  
Local Thermodynamic Equilibrium ◽  
Argon Plasma ◽  
Spectral Lines

Transient conditions in inductively heated plasmas: thermodynamic equilibrium and temperature measurements

1982 ◽  
Vol 60 (6) ◽  
pp. 886-892 ◽  
Author(s):  
Paul Meubus
Keyword(s):  
Thermodynamic Equilibrium ◽  
Decay Time ◽  
Concentration Distribution ◽  
Local Thermodynamic Equilibrium ◽  
Energy Levels ◽  
Argon Plasma ◽  
Partition Functions ◽  
Transient Conditions ◽  
Gas Interactions ◽  
Catalytic Effects

A study has been made on transient extinction conditions in an inductively heated argon plasma. It was observed that local thermodynamic equilibrium (LTE) conditions do exist between the metastable 3P2 level and upper energy levels, so that during the decay time it is possible to determine a meaningful temperature, using the 3P2 level as a fundamental level and the partition functions being calculated accordingly. Together with the temperature determination, a concentration distribution of argon metastables was obtained.Studies of this type are useful for the investigation of quenching processes in plasmas, affecting favorably chemical reactions or solid–gas interactions, thus leading to enhanced catalytic effects or modifications of solid particle structures which are liable to generate new electrical, thermal, etc. properties of interest.

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