Ion broadening of dense-plasma spectral lines including field-dependent atomic physics and the ion quadrupole interaction

Journal Article · Mon Nov 01 04:00:00 EST 1993 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.48.3901· OSTI ID:5912311

Kilcrease, D P; Mancini, R C; Hooper, Jr, C F ^[1]

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1. Department of Physics, University of Florida, Gainesville, Florida 32611 (United States)

We examine the theoretical line spectra from hydrogenlike argon in the electron-number-density range of 10[sup 24--]10[sup 25] cm[sup [minus]3] and at a temperature corresponding to [ital kT]=800 eV. At these high densities it is important to address the relevance of higher-order plasma-ion microfield effects on the spectral line shape. We begin by calculating spectral line shapes using electric-field-dependent matrix elements that are constructed from wave functions which are solutions of Schroedinger's equation for hydrogenic ions in a uniform field. This provides a suitable basis for including microfield spatial nonuniformities by considering the quadrupole term in the radiator-perturbing ion interaction. Field gradients are calculated in an approximation that takes ion-ion correlations into account. We examine the consequences of these effects as well as of mixing between the adjacent Stark manifold on the Lyman-[alpha] and Lyman-[beta] lines of hydrogenlike argon.

• DOE Contract Number: AS03-88DP10696; AS03-88DP10780
• OSTI ID: 5912311
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 48:5; ISSN 1063-651X; ISSN PLEEE8
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
ARGON
CHARGED PARTICLES
CORRELATIONS
DIFFERENTIAL EQUATIONS
EIGENFUNCTIONS
ELECTRIC FIELDS
ELECTRON DENSITY
ELEMENTS
EQUATIONS
FLUIDS
FUNCTIONS
GASES
HOT PLASMA
IONS
LINE BROADENING
LYMAN LINES
NONMETALS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA DIAGNOSTICS
RARE GASES
SCHROEDINGER EQUATION
WAVE EQUATIONS