Partial redistribution in high-density, highly ionized plasmas

Journal Article · Sun Nov 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165773· OSTI ID:5465942

Talin, B; Stamm, R; Kaftandjian, V P; Klein, L

The conditions for which partial redistribution functions must be used for radiation transport in high-Z, high-density, laser-produced plasmas are examined. A previously developed two-photon formalism based on the model microfield method is used to calculate redistribution functions including electron and ion Stark broadening with ion dynamic effects. The competition between the relaxation rates and spontaneous emission is shown to determine the conditions for partial redistribution. The discussion makes use of microfield fluctuation rates and broadening coefficients which can be determined from simulation calculations. The redistribution function for the Ly-alpha transition of Ar XVIII is presented for typical plasma conditions. 12 references.

• Research Organization: Aix-Marseille I Universite, France; Howard Univ., Washington, DC
• OSTI ID: 5465942
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 322; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640100* -- Astrophysics & Cosmology
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ENERGY TRANSFER
HEAT TRANSFER
LASER-PRODUCED PLASMA
LYMAN LINES
PLASMA
RADIANT HEAT TRANSFER
RADIATION TRANSPORT
STOCHASTIC PROCESSES