Accession Number : AD0779890
Title : A Study of Equations of State/Opacity of Ionized Gases.
Descriptive Note : Final rept. 31 Oct 72-31 Oct 73,
Corporate Author : SYSTEMS SCIENCE AND SOFTWARE LA JOLLA CALIF
Personal Author(s) : Harvey,James M. ; Katz,Ira ; Vik,Robert C.
Report Date : OCT 1973
Pagination or Media Count : 84
Abstract : The report describes additions and modifications to the CAPO system of opacity codes and presents the results of other research tasks on emission, absorption and transport of radiation in high temperature materials. The accuracy of several approximate methods of opacity treatment is assessed. The radiative properties of thin plasmas, not in local thermodynamic equilibrium (non-LTE) are considered. Several codes written to provide ionic charge distributions, excited state populations, and emission rates in non-LTE plasmas are described. Electron positron pair production rates are studied and estimates made of the times required to establish significant pair populations under various conditions. (Author)
Descriptors : *Opacity, *Plasmas(Physics), *Equations of state, Positrons, Electronic states, Emission spectra, Absorption spectra, Computerized simulation, Electron transitions, Atomic energy levels, Transmittance, Rates, Computer programming, Photons, Particle collisions, Temperature
Subject Categories : Computer Programming and Software
Atomic and Molecular Physics and Spectroscopy
Plasma Physics and Magnetohydrodynamics
Distribution Statement : APPROVED FOR PUBLIC RELEASE