A brief review of the intensity of lines 3C and 3D in neon-like Fe XVII

Brown, G V

doi:10.1139/p07-158

Title: A brief review of the intensity of lines 3C and 3D in neon-like Fe XVII

Conference · Wed Jun 13 00:00:00 EDT 2007

DOI:https://doi.org/10.1139/p07-158· OSTI ID:919962

Brown, G V

X-ray emission from neon-like Fe XVII has been measured with high-resolution spectrometers from laboratory or celestial sources for nearly seven decades. Two of the strongest lines regularly identified in these spectra are the {sup 1}P{sub 1} {yields} {sup 1}S{sub 0} resonance, and {sup 3}D{sub 1} {yields} {sup 1}S{sub 0} intercombination line, known as 3C and 3D, respectively. This paper gives a brief overview of measurements of the intensities of the lines 3C and 3D from laboratory and celestial sources, and their comparison to model calculations, with an emphasis on measurements completed using an electron beam ion trap. It includes a discussion of the measured absolute cross sections compared to results from modern atomic theory calculations, as well as the diagnostic utility of the relative intensity, R = I{sub 3C}/I{sub 3D}, as it applies to the interpretation of spectra measured from the Sun and extra-Solar sources.

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

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 919962

Report Number(s):: UCRL-CONF-231778; TRN: US0806537

Resource Relation:: Journal Volume: 86; Journal Issue: 1; Conference: Presented at: 20 years of Spectroscopy with the Electron Beam Ion Trap, Berkeley, CA, United States, Nov 12 - Nov 16, 2006

Country of Publication:: United States

Language:: English

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Title: A brief review of the intensity of lines 3C and 3D in neon-like Fe XVII

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