Calculation of Population Densities of Excited CI and CII Levels in Helium and Argon Plasmas Containing Small Admixtures of CO_{2} - Importance to Analysis of Radiation Emitted from Plasmas of Axial Symmetry

• Authors: A. Bacławski , J. Musielok
• Languages of publication: EN

Abstracts

EN

Population densities of excited CI and CII levels are calculated in helium and argon plasmas containing small admixtures of CO_{2}. Calculations are performed for a total pressure of 1 atmosphere, in a temperature interval from 8000 K to 40000 K, assuming local thermal equilibrium (LTE) and partial local thermal equilibrium (pLTE) conditions. Normal temperatures are obtained for selected excited CI and CII levels. The results are applied to a helium plasma with traces of CO_{2}, of cylindrical symmetry with presumed radial temperature distribution. Effective intensities of CI and CII spectral lines, corresponding to side-on radiance measurements along the cylinder diameter are evaluated. On hand of these effective line intensities and applying the Boltzmann plot method effective temperatures are evaluated and compared with the presumed temperature distribution.

Keywords

EN

32.30.-r; 52.25.-b; 52.25.Rv

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 3
• Pages: 519-529

Dates

published

1997-03

received

1996-11-04

(unknown)

1997-01-28

Contributors

author

A. Bacławski

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland

author

J. Musielok

• Institute of Physics, Opole University, Oleska 48, 45-052 Opole, Poland