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Title: Electron-impact single and double ionization of W

Abstract

Electron-impact single and double ionization cross sections for the W atom are calculated using a semi-relativistic distorted-wave method. The cross sections include contributions from single direct ionization, double direct ionization and excitation-autoionization. Branching ratio calculations are made to determine whether an excitation may contribute to single or double ionization. We check the accuracy of the semi-relativistic distorted-wave calculations for direct ionization of various subshells by comparison with fully-relativistic distorted-wave calculations. We also check the accuracy of the perturbative distorted-wave calculations for direct ionization of the outer most subshells by comparison with non-perturbative time-dependent close-coupling calculations.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1543921
Resource Type:
Journal Article
Journal Name:
Journal of Physics. B, Atomic, Molecular and Optical Physics
Additional Journal Information:
Journal Volume: 50; Journal Issue: 9; Journal ID: ISSN 0953-4075
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
Optics; Physics

Citation Formats

Pindzola, M. S., Loch, S. D., and Foster, A. R. Electron-impact single and double ionization of W. United States: N. p., 2017. Web. doi:10.1088/1361-6455/aa66e6.
Pindzola, M. S., Loch, S. D., & Foster, A. R. Electron-impact single and double ionization of W. United States. doi:10.1088/1361-6455/aa66e6.
Pindzola, M. S., Loch, S. D., and Foster, A. R. Thu . "Electron-impact single and double ionization of W". United States. doi:10.1088/1361-6455/aa66e6.
@article{osti_1543921,
title = {Electron-impact single and double ionization of W},
author = {Pindzola, M. S. and Loch, S. D. and Foster, A. R.},
abstractNote = {Electron-impact single and double ionization cross sections for the W atom are calculated using a semi-relativistic distorted-wave method. The cross sections include contributions from single direct ionization, double direct ionization and excitation-autoionization. Branching ratio calculations are made to determine whether an excitation may contribute to single or double ionization. We check the accuracy of the semi-relativistic distorted-wave calculations for direct ionization of various subshells by comparison with fully-relativistic distorted-wave calculations. We also check the accuracy of the perturbative distorted-wave calculations for direct ionization of the outer most subshells by comparison with non-perturbative time-dependent close-coupling calculations.},
doi = {10.1088/1361-6455/aa66e6},
journal = {Journal of Physics. B, Atomic, Molecular and Optical Physics},
issn = {0953-4075},
number = 9,
volume = 50,
place = {United States},
year = {2017},
month = {4}
}

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