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

Menahem Krief; Alexander Feigel

doi:10.1016/j.hedp.2015.04.003

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 journal › Article › peer-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 language	English
Pages (from-to)	59-66
Number of pages	8
Journal	High Energy Density Physics
Volume	15
DOIs	https://doi.org/10.1016/j.hedp.2015.04.003
State	Published - 1 Jun 2015
Externally published	Yes

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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10.1016/j.hedp.2015.04.003

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title = "The effect of first order superconfiguration energies on the opacity of hot dense matter",

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.",

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doi = "10.1016/j.hedp.2015.04.003",

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AU - Krief, Menahem

AU - Feigel, Alexander

PY - 2015/6/1

Y1 - 2015/6/1

N2 - 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.

AB - 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.

KW - Configuration average energy

KW - First order superconfiguration average energy

KW - Gold opacity

KW - Opacity

KW - Super transition array

KW - Unresolved transition array

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SN - 1574-1818

VL - 15

SP - 59

EP - 66

JO - High Energy Density Physics

JF - High Energy Density Physics

ER -

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

Abstract

Bibliographical note

Keywords

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