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Title: Resonance-to-intercombination-line ratios of neonlike ions in the relativistic regime

Abstract

We report measurements of the intensity ratio of the 1s22s22p$$5\atop{1/2}$$3d3/2→1s22s22p6 resonance line to the 1s22s22p$$5\atop{3/2}$$3d5/2→1s22s22p6 intercombination line in neonlike Kr26+ and Mo32+. The measurements were performed at the EBIT-I electron beam ion trap facility at the Lawrence Livermore National Laboratory and utilized an x-ray microcalorimeter. The measured ratio for Mo32+ is in four times closer agreement with theoretical predictions than earlier measurements of ions with lower atomic number. Our measurement thus suggests a narrowing of the disagreement with atomic number, which had not been observed in the previously existing data. This implies that the disagreement with theory may be localized to ions within a range of atomic numbers in which intermediate coupling dominates.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE; National Aeronautic and Space Administration (NASA)
OSTI Identifier:
1400081
Alternate Identifier(s):
OSTI ID: 1361439
Report Number(s):
LLNL-JRNL-718380
Journal ID: ISSN 2469-9926; PLRAAN; TRN: US1703225
Grant/Contract Number:  
AC52-07NA27344; 4000114313/15/NL/CB
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 95; Journal Issue: 6; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Panchenko, D., Beiersdorfer, P., Hell, N., Brown, G. V., Kelley, R., Kilbourne, C. A., and Porter, F. S. Resonance-to-intercombination-line ratios of neonlike ions in the relativistic regime. United States: N. p., 2017. Web. doi:10.1103/PhysRevA.95.062503.
Panchenko, D., Beiersdorfer, P., Hell, N., Brown, G. V., Kelley, R., Kilbourne, C. A., & Porter, F. S. Resonance-to-intercombination-line ratios of neonlike ions in the relativistic regime. United States. doi:10.1103/PhysRevA.95.062503.
Panchenko, D., Beiersdorfer, P., Hell, N., Brown, G. V., Kelley, R., Kilbourne, C. A., and Porter, F. S. Mon . "Resonance-to-intercombination-line ratios of neonlike ions in the relativistic regime". United States. doi:10.1103/PhysRevA.95.062503. https://www.osti.gov/servlets/purl/1400081.
@article{osti_1400081,
title = {Resonance-to-intercombination-line ratios of neonlike ions in the relativistic regime},
author = {Panchenko, D. and Beiersdorfer, P. and Hell, N. and Brown, G. V. and Kelley, R. and Kilbourne, C. A. and Porter, F. S.},
abstractNote = {We report measurements of the intensity ratio of the 1s22s22p$5\atop{1/2}$3d3/2→1s22s22p6 resonance line to the 1s22s22p$5\atop{3/2}$3d5/2→1s22s22p6 intercombination line in neonlike Kr26+ and Mo32+. The measurements were performed at the EBIT-I electron beam ion trap facility at the Lawrence Livermore National Laboratory and utilized an x-ray microcalorimeter. The measured ratio for Mo32+ is in four times closer agreement with theoretical predictions than earlier measurements of ions with lower atomic number. Our measurement thus suggests a narrowing of the disagreement with atomic number, which had not been observed in the previously existing data. This implies that the disagreement with theory may be localized to ions within a range of atomic numbers in which intermediate coupling dominates.},
doi = {10.1103/PhysRevA.95.062503},
journal = {Physical Review A},
number = 6,
volume = 95,
place = {United States},
year = {2017},
month = {6}
}

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