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

Panchenko, D.; Beiersdorfer, P.; Hell, N.; Brown, G. V.; Kelley, R.; Kilbourne, C. A.; Porter, F. S.

doi:10.1103/PhysRevA.95.062503

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

Abstract

We report measurements of the intensity ratio of the 1s²2s²2p$$5\atop{1/2}$$3d_3/2→1s²2s²2p⁶ resonance line to the 1s²2s²2p$$5\atop{3/2}$$3d_5/2→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:

Panchenko, D. ^[1]; Beiersdorfer, P. ^[1]; Hell, N. ^[1]; Brown, G. V. ^[1]; Kelley, R. ^[2]; Kilbourne, C. A. ^[2]; Porter, F. S. ^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)

Publication Date:: Mon Jun 05 00:00:00 EDT 2017

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE; National Aeronautics 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.

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                    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.  https://doi.org/10.1103/PhysRevA.95.062503

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                    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.  https://doi.org/10.1103/PhysRevA.95.062503.  https://www.osti.gov/servlets/purl/1400081.

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@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         = {Mon Jun 05 00:00:00 EDT 2017},

  month        = {Mon Jun 05 00:00:00 EDT 2017}

}

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Works referenced in this record:

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Works referencing / citing this record:

Polarization measurements of Ne-like Mo ³²⁺ x-ray lines excited by an electron beam
journal, September 2019

Petkov, E. E.; Safronova, A. S.; Kantsyrev, V. L.
Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 52, Issue 19
DOI: 10.1088/1361-6455/ab38e6

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

Abstract

Citation Formats

Wide-band, high-resolution soft x-ray spectrometer for the Electron Beam Ion Trap journal, January 1999

Low energy x‐ray spectrometer for an electron beam ion trap journal, January 1994

High-resolution x-ray spectra from molybdenum ions in the Alcator- C tokamak journal, May 1983

Performance of the EBIT calorimeter spectrometer journal, October 2008

An unexpectedly low oscillator strength as the origin of the Fe xvii emission problem journal, December 2012

Polarization spectroscopy of x-ray transitions from beam-excited highly charged ions journal, January 1997

Polarization measurements of the Lyman- α 1 x-ray emission lines of hydrogenlike Ar 17 + and Fe 25 + at high electron-impact energies journal, August 2006

Laboratory Measurements of the Fe xvii 2 p –3 s and 2 p –3 d Transitions and Comparison with Solar and Astrophysical Observations journal, July 2004

Laboratory Measurements of 3 → 2 X-Ray Emission Lines of Ne-like Ni xix journal, April 2004

Electron-correlation effects on the 3 C to 3 D line-intensity ratio in the Ne-like ions Ar 8 + to Kr 26 + journal, January 2015

Energy-Dependent Excitation Cross Section Measurements of the Diagnostic Lines of Fe XVII journal, June 2006

Systematic measurement of the relative electron-impact excitation cross section of the 3 d → 2 p 1 P 1 resonance and 3 D 1 intercombination lines in mid- Z neonlike ions journal, February 2001

The Chandra Iron‐L X‐Ray Line Spectrum of Capella journal, February 2001

Electric-dipole, electric-quadrupole, magnetic-dipole, and magnetic-quadrupole transitions in the neon isoelectronic sequence journal, June 2001

Fe XVII X-RAY LINE RATIOS FOR ACCURATE ASTROPHYSICAL PLASMA DIAGNOSTICS journal, January 2011

Polarization-dependent spectra of x-ray dielectronic satellite lines of Be-like Fe journal, February 1998

Measurement of the 3 d → 2 p resonance to intercombination line-intensity ratio in neonlike Fe XVII, Ge XXIII, and Se XXV journal, August 2001

Polarization of K -shell x-ray transitions of Ti 1 9 + and Ti 2 0 + excited by an electron beam journal, November 1999

Laboratory astrophysics using a spare XRS microcalorimeter conference, December 2000

Rare-earth neutral metal injection into an electron beam ion trap plasma journal, November 2014

Relativistic cross sections for excitation of highly charged ions to specific magnetic sublevels by an electron beam journal, January 1990

Laboratory Measurements of the Relative Intensity of the 3[CLC][ITAL]s[/ITAL][/CLC] → 2[CLC][ITAL]p[/ITAL][/CLC] and 3[CLC][ITAL]d[/ITAL][/CLC] → 2[CLC][ITAL]p[/ITAL][/CLC] Transitions in F[CLC]e[/CLC] [CSC]xvii[/CSC] journal, September 2002

Evidence for strong configuration mixing in n = 3 excited levels in neonlike ions journal, April 2000

Laboratory Measurements and Modeling of the Fe xvii X‐Ray Spectrum journal, August 1998

High‐Resolution Observations of the Elliptical Galaxy NGC 4636 with the Reflection Grating Spectrometer on Board XMM‐Newton journal, November 2002

Evolution of X-ray calorimeter spectrometers at the Lawrence Livermore Electron Beam Ion Trap journal, April 2009

Energies, Oscillator Strengths, and Lifetimes for Neon-like Ions Up to Kr XXVII journal, January 1993

Relativistic distorted wave collision strengths for excitation to the 88 n = 3 and n = 4 levels in all 71 neon-like ions with 22 ≤ Z ≤ 92 journal, September 1989

Very high resolution soft x-ray spectrometer for an electron beam ion trap journal, January 1997

X-ray observations of 2 l - nl ' transitions and configuration-interaction effects from Kr, Mo, Nb and Zr in near neon-like charge states from tokamak plasmas journal, November 2000

Polarization measurements of Ne-like Mo 32+ x-ray lines excited by an electron beam journal, September 2019

Wide-band, high-resolution soft x-ray spectrometer for the Electron Beam Ion Trap
journal, January 1999

Low energy x‐ray spectrometer for an electron beam ion trap
journal, January 1994

High-resolution x-ray spectra from molybdenum ions in the Alcator- $C$ tokamak
journal, May 1983

Performance of the EBIT calorimeter spectrometer
journal, October 2008

An unexpectedly low oscillator strength as the origin of the Fe xvii emission problem
journal, December 2012

Polarization spectroscopy of x-ray transitions from beam-excited highly charged ions
journal, January 1997

Polarization measurements of the Lyman- $α_{1}$ x-ray emission lines of hydrogenlike ${Ar}^{17 +}$ and ${Fe}^{25 +}$ at high electron-impact energies
journal, August 2006

Laboratory Measurements of the Fe xvii 2 p –3 s and 2 p –3 d Transitions and Comparison with Solar and Astrophysical Observations
journal, July 2004

Laboratory Measurements of 3 → 2 X-Ray Emission Lines of Ne-like Ni xix
journal, April 2004

Electron-correlation effects on the $3 C$ to $3 D$ line-intensity ratio in the Ne-like ions ${Ar}^{8 +}$ to ${Kr}^{26 +}$
journal, January 2015

Energy-Dependent Excitation Cross Section Measurements of the Diagnostic Lines of Fe XVII
journal, June 2006

Systematic measurement of the relative electron-impact excitation cross section of the $3 \vec{d} 2 p^{1} P_{1}$ resonance and $^{3} D_{1}$ intercombination lines in mid- $Z$ neonlike ions
journal, February 2001

The Chandra Iron‐L X‐Ray Line Spectrum of Capella
journal, February 2001

Electric-dipole, electric-quadrupole, magnetic-dipole, and magnetic-quadrupole transitions in the neon isoelectronic sequence
journal, June 2001

Fe XVII X-RAY LINE RATIOS FOR ACCURATE ASTROPHYSICAL PLASMA DIAGNOSTICS
journal, January 2011

Polarization-dependent spectra of x-ray dielectronic satellite lines of Be-like Fe
journal, February 1998

Measurement of the $3 \vec{d} 2 p$ resonance to intercombination line-intensity ratio in neonlike Fe XVII, Ge XXIII, and Se XXV
journal, August 2001

Polarization of K -shell x-ray transitions of ${Ti}^{19 +}$ and ${Ti}^{20 +}$ excited by an electron beam
journal, November 1999

Laboratory astrophysics using a spare XRS microcalorimeter
conference, December 2000

Rare-earth neutral metal injection into an electron beam ion trap plasma
journal, November 2014

Relativistic cross sections for excitation of highly charged ions to specific magnetic sublevels by an electron beam
journal, January 1990

Laboratory Measurements of the Relative Intensity of the 3[CLC][ITAL]s[/ITAL][/CLC] → 2[CLC][ITAL]p[/ITAL][/CLC] and 3[CLC][ITAL]d[/ITAL][/CLC] → 2[CLC][ITAL]p[/ITAL][/CLC] Transitions in F[CLC]e[/CLC] [CSC]xvii[/CSC]
journal, September 2002

Evidence for strong configuration mixing in $n = 3$ excited levels in neonlike ions
journal, April 2000

Laboratory Measurements and Modeling of the Fe xvii X‐Ray Spectrum
journal, August 1998

High‐Resolution Observations of the Elliptical Galaxy NGC 4636 with the Reflection Grating Spectrometer on Board XMM‐Newton
journal, November 2002

Evolution of X-ray calorimeter spectrometers at the Lawrence Livermore Electron Beam Ion Trap
journal, April 2009

Energies, Oscillator Strengths, and Lifetimes for Neon-like Ions Up to Kr XXVII
journal, January 1993

Relativistic distorted wave collision strengths for excitation to the 88 n = 3 and n = 4 levels in all 71 neon-like ions with 22 ≤ Z ≤ 92
journal, September 1989

Very high resolution soft x-ray spectrometer for an electron beam ion trap
journal, January 1997

X-ray observations of 2 l - nl ' transitions and configuration-interaction effects from Kr, Mo, Nb and Zr in near neon-like charge states from tokamak plasmas
journal, November 2000

Polarization measurements of Ne-like Mo ³²⁺ x-ray lines excited by an electron beam
journal, September 2019