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Photoionization of OIIIlow-lying states: autoionization resonance energies and widths of some 1s-2p excited states

Content Provider	Scilit
Author	Zeng, Jiaolong Yuan, Jianmin Lu, Qisheng
Copyright Year	2001
Description	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Twenty-four-state close-coupling calculations are performed on the inner-shell photoionization of the terms belonging to the configurations $2s^{2}2p^{2}$ and $2s2p^{3}$ of the O III ion. The resonance energies and widths of the transitions of a 1s electron excited into the 2p orbital are determined by analysing the resonance structures of the photoionization cross sections. The calculations show that the autoionization resonance widths of these inner-shell transitions are larger than the corresponding Doppler full width at half maximum (FWHM) and Stark FWHM by a factor of two or three under typical plasma conditions (such as a temperature of 10 eV and a density of 0.0016 g $cm^{-3}$). The autoionization resonance broadening is obviously the main broadening mechanism and should be considered when analysing the plasma spectrum. Only when the electron density is larger than $5×10^{21}$ $cm^{-3}$ may the Stark FWHM be larger than the autoionization resonance FWHM.
Related Links	http://iopscience.iop.org/article/10.1088/0953-4075/34/14/305/pdf
Ending Page	2833
Page Count	11
Starting Page	2823
ISSN	09534075
e-ISSN	13616455
DOI	10.1088/0953-4075/34/14/305
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Issue Number	14
Volume Number	34
Language	English
Publisher	IOP Publishing
Publisher Date	2001-07-11
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Atomic, Molecular and Chemical Physics Autoionization Resonance
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics

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