Line-by-line method of calculating emission coefficients for thermal plasmas consisting of monatomic species.

Details Line-by-line method of calculating emission coefficients for thermal plasmas consisting of monatomic species. Line-by-line method of calculating emission coefficients for thermal plasmas consisting of monatomic species.

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jqsrt..56..377m&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 56, issue 3, pp. 377-398

Computer Science

12

Plasma: Line Formation, Plasma: Radiative Transfer, Plasma Diagnostics

Scientific paper

A theoretically rigorous method for obtaining radiation property data of thermal plasmas composed of monatomic, nonhydrogenic species is presented. An exact line-by-line technique is utilized in order to avoid assumptions that are commonly made in handling line radiation. Doppler, natural, Van der Waals, resonance, and quadratic Stark broadening mechanisms are included in determining the line half-widths. In addition to line radiation, free-bound continuum and free-free continuum for both ions and neutral particles are considered. The fundamental radiation property determined by the program is the spectral emission coefficient. From this property the spectral absorption coefficient can easily be determined. Properties that are more suitable for engineering analysis, such as the wavelength integrated emission coefficient and the net emission coefficient, are also calculated. Comparisons to experimentally determined wavelength integrated emission coefficients for argon plasmas and analytically determined net emission coefficients for argon/copper plasmas are presented.

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