The effect of first order superconfiguration energies on the opacity of hot dense matter

Menahem Krief*, Alexander Feigel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We have recently completed developing a new super transition array (STA) code for calculating absorption and emission spectra of LTE plasmas. The code follows the theory of Bar-Shalom etal. with various improvements. In this work we focus on the first order correction for the Boltzmann populations for which traditional calculations can be very costly. We present here a method faster by an order of magnitude than the traditional method. We then investigate the effect of this correction on the opacity spectra of several elements. Finally we interpret results of a recent opacity experiment on gold plasma. A good agreement is reached.

Original languageAmerican English
Pages (from-to)59-66
Number of pages8
JournalHigh Energy Density Physics
Volume15
DOIs
StatePublished - 1 Jun 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V..

Keywords

  • Configuration average energy
  • First order superconfiguration average energy
  • Gold opacity
  • Opacity
  • Super transition array
  • Unresolved transition array

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