Redistribution function for resonance radiation in a hot dense plasma

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Journal of Experimental and Theoretical Physics

OSTI ID:121678

Bulyshev, A E; Demura, A V; Lisitsa, V S ^[1]

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1. Troitsk Inst. of Innovative and Thermonuclear Research (Russian Federation); and others

The redistribution function for resonance radiation in the L{sup {alpha}} spectral line of hydrogenic ions in a dense hot plasma is calculated. The calculation is based on a self-consistent solution of the equations for the populations of the excited ionic sublevels and for the polarizations of the transitions considered. Nonlinear interference effects due to mixing of atomic states in both static and dynamic ionic fields are thereby taken into account. Molecular dynamics methods are used to account for the evolution of the multiparticle ionic field resulting from thermal motion of the ions. We calculate the L{sup {alpha}} line of the hydrogen-like argon ion in a plasma with electron temperature 1 keV and electron density N{sub e}=10{sup 22}-cm{sup {minus}3}. The rescattering function is compared with the approximation provided by complete frequency redistribution. The results demonstrate the limited usefulness of the latter approximation for a plasma consisting of multiply-charged ions. 23 refs., 4 figs.

• OSTI ID: 121678
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 1 Vol. 81; ISSN 1063-7761; ISSN JXTPAS
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARGON IONS
DISTRIBUTION FUNCTIONS
ELECTRON TEMPERATURE
EMISSION SPECTRA
HOT PLASMA
LINE BROADENING
MULTICHARGED IONS
RADIATION TRANSPORT
SCATTERING