Results 11 to 20 of about 53 (33)

On the number of atomic configurations in hot plasmas [PDF]

open access: yes
We propose approximate and accurate formulas for the number of electron configurations in hot plasmas. Such a quantity is an ingredient of algorithms devoted to the generation of configurations or superconfigurations, which is a pre-requisite of opacity ...
Aberg, Daniel   +2 more
core   +9 more sources

Checking the reliability of opacity databases [PDF]

open access: yes, 2023
Mathematical inequalities, combined with atomic-physics sum rules, enable one to derive lower and upper bounds for the Rosseland and/or Planck mean opacities. The resulting constraints must be satisfied, either for pure elements or mixtures.
Pain, Jean-Christophe   +3 more
core   +1 more source

Atomic properties in hot plasmas: from levels to superconfigurations

open access: yes, 2015
This book is devoted to the calculation of hot-plasma properties which generally requires a huge number of atomic data. It is the first book that combines information on the details of the basic atomic physics and its application to atomic spectroscopy ...
Peyrusse, Olivier   +2 more
core   +1 more source

Spectroscopie d'absorption X résolue en temps pour l'étude de la matière dense et tiède [PDF]

open access: yes, 2009
The possibility of producing, in a controlled way, matter at solid density (1-10 g/cc) while maintaining it at temperatures ranging from 0.1 to 100 eV has been for a long time a desired goal.
Harmand, Marion
core   +2 more sources

LOW LYING ELECTRONIC STATES OF LANTHANIDE MONOFLUORIDES: RECENT RESULTS

open access: yes, 1992
Author Institution: Department of Chemistry, Emory University; Physics Department, University of New Brunswick; Laser Chemistry Group, Steacie Institute for Molecular Science; Physics Department, University of New BrusnwickThe use of vibration ...
Simard, B.   +5 more
core   +1 more source

Sur la physique atomique des ions dans les plasmas en présence de l'écrantage [PDF]

open access: yes, 2002
This work is an improvement of the characterisation of ionic species in plasmas. It is important to model the thermodynamics of these plasmas, especially in order to describe their ability to absorb radiations.
Pain, Jean-Christophe
core   +1 more source

Time-resolved X-ray absorption spectroscopy for warm dense matter study

open access: yes, 2021
L'étude des plasmas denses et tièdes est un domaine qui suscite aujourd'hui l'intérêt de nombreux groupes de recherche de part son large spectre d'applications.
HARMAND, Marion
core  

Calculation of emission and absorption spectra of LTE plasma by the STA (Super Transition Array) method

open access: yes, 1991
Recent improvements in the Super Transition Array (STA) method for calculating Bound-Bound (BB) and Bound-Free (BF) emission and absorption spectra for LTE plasma are described and illustrated.
Goldstein, W.H. (Lawrence Livermore National Lab., CA (USA))   +2 more
core  

Superconfigurations and Super Transition Arrays

open access: yes, 2015
Jacques Bauché   +2 more
exaly   +2 more sources

The temperature law for superconfigurations in non-LTE plasmas

open access: yesJournal of Quantitative Spectroscopy and Radiative Transfer, 2001
C Bauche-Arnoult, J Bauché
exaly   +2 more sources

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