Mathematics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jqsrt..27..281w&link_type=abstract
(Conference on Radiative Properties of Hot Dense Matter, Monterey, CA, Nov. 17-20, 1980.) Journal of Quantitative Spectroscopy a
Mathematics
8
Argon Plasma, Collisional Plasmas, Computerized Simulation, Dense Plasmas, Plasma Diagnostics, Plasma Radiation, X Ray Spectra, Emission Spectra, Line Spectra, Mathematical Models, Radiation Absorption, Stark Effect, Thermodynamic Equilibrium
Scientific paper
An atomic and collisional model for argon plasmas with an ion density of more than 10 to the 20th/cu cm, temperatures sufficient for K-shell emission, and with a spherical geometry is discussed. The model includes the intercombination line and 22 line couplings, in addition to 8 continuum couplings. The computed emission spectra span the region from 918 eV to 13.7 keV. The behavior and strengths of the absorption processes, the plasma opacity, and the degree of anisotropy of the radiation field are examined analytically, and the necessity for including Stark profile calculations for lines of diagnostic significance and collisional width estimates for Voigt profiles of highly overlapping lines is demonstrated. The equations are employed to post-process a hydrodynamic explosion.
Kepple Paul C.
Whitney K. G.
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