Systematic trends in the radiative emission rates for low- and medium-Z elements in high-temperature plasmas

Details Systematic trends in the radiative emission rates for low- and medium-Z elements in high-temperature plasmas Systematic trends in the radiative emission rates for low- and medium-Z elements in high-temperature plasmas

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jqsrt..24..283d&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 24, Oct. 1980, p. 283-288. Research supported by the U.S. Def

Physics

4

High Temperature Plasmas, Plasma Chemistry, Plasma Radiation, Radiant Cooling, Electron Energy, Laser Plasmas, Plasma Density

Scientific paper

The power radiated by an optically thin, low-denity plasma has been calculated for the electron temperature range 1-1,000,000 eV taking into account resonance line emission, direct recombination radiation, dielectronic recombination radiation, and bremsstrahlung from the ions of a given element. The ionization structure has been determined by using a corona equilibrium model in which collisional ionization and inner-shelled excitation followed by autoionization are balanced by direct radiative and dielectronic recombination. Based on the results for representative elements from carbon through nickel, graphs are presented of the maximum radiated power, the maximum emission temperature, and the mean charge at the maximum for each shell as functions of the atomic number Z. Assuming that the maximum emission temperature can be achieved, aluminum and iron are predicted to be the most efficient K-shell radiators for Z less than or equal to 28.

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