Cross sections for some core-excited Na I quartet states

Content Provider	Scilit
Author	Msezane, A. Z. Awuah, P.
Copyright Year	1990
Description	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Electron-impact cross sections for excitation from ground 3s$ ^{2}$S and excited $2p^{5}$3s3p$ ^{4}$S states to the lowest core-excited quartet states of Na I arising from the configurations $2p^{5}$3s3p, $2p^{5}$3s3d and $2p^{5}$3s4s are calculated and contrasted using a 12-state R-matrix method for energies from near threshold to 6 Ryd. In the threshold region resonance structure characterizes the cross sections with those from the $2p^{5}$3s3p$ ^{4}$S state dominating the corresponding ones from the ground state by at least two orders of magnitude. Significantly, the cross sections from the inner-shell $2p^{5}$3s3p$ ^{4}$S state are on the average comparable with or even greater than those from the ground state to the 3d$ ^{2}$D, 4s$ ^{2}$S, 4p$ ^{2}$P degrees or 4d$ ^{2}$D previously calculated. The results may have interesting implications for the Na I XUV laser.
Related Links	http://iopscience.iop.org/article/10.1088/0953-4075/23/24/016/pdf
Ending Page	4623
Page Count	9
Starting Page	4615
ISSN	09534075
e-ISSN	13616455
DOI	10.1088/0953-4075/23/24/016
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Issue Number	24
Volume Number	23
Language	English
Publisher	IOP Publishing
Publisher Date	1990-12-28
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Nuclear Physics Ground State Cross Section Electron Scattering Energy Levels Electron Impact
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics