Model calculations and measurements of the emission of a barium plasma in the spectral range of high-n rydberg levels in a near Ni-like state

J. Colgan, J. Abdallah Jr., A.Ya. Faenov, T.A. Pikuz, I.Yu. Skobelev, F. Flora, M. Francucci, S. Martellucci

Research output: Contribution to journalArticle

Abstract

The Los Alamos suite of atomic codes is used to model several high-resolution spectral measurements from recent laser-produced plasma experiments involving barium fluoride targets. The spectral range of observation is from 7.8 to 9.5 Å and the observed lines correspond to 3-5, 3-6, 3-7 and 3-8 transitions of principal quantum number, for Ga-like through Co-like barium ions. The observed spectra are complicated because of many overlapping lines from the various ion stages in a small wavelength region. A MUTA model that includes many configurations is compared to a detailed level-to-level collisional-radiative model that includes fewer configurations. Spectra are calculated to show the sensitivity to plasma temperature, density and size. The contributions to the spectra for the individual ion stages are also presented. The model calculations are in reasonable agreement with experiment. © 2010 IOP Publishing Ltd Printed in the UK & the USA.
Original languageEnglish
Article number175701
Pages (from-to)-
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume43
Issue number17
DOIs
Publication statusPublished - 14 Sep 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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