Electron-impact single and double ionization of the Fe atom and $${\mathrm{Fe}}^{q+(q=1\mbox{--}4)}$$ atomic ions

Journal Article · Wed Nov 29 00:00:00 EST 2017 · Journal of Physics. B, Atomic, Molecular and Optical Physics

DOI:https://doi.org/10.1088/1361-6455/aa9594· OSTI ID:1523387

Pindzola, M. S.  ^[1]; Loch, S. D. ^[2]

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1. Auburn Univ., AL (United States). Dept. of Physics
2. Auburn Univ., AL (United States). Dpet. of Physics

Electron-impact single and double ionization cross sections for the Fe atom and $${\mathrm{Fe}}^{q+(q=1\mbox{--}4)}$$ atomic ions are calculated using a combination of perturbative distorted-wave (DW) and non-perturbative time-dependent close-coupling (TDCC) methods. The single ionization cross sections include contributions from outer subshell direct ionization and excitation-autoionization. The double ionization cross sections include contributions from direct double ionization, inner subshell direct ionization, and excitation-autoionization. The accuracy of the perturbative DW calculations for direct ionization of the outer subshells of Fe and Fe+ are checked by comparison with non-perturbative TDCC calculations. The cross sections for single and double ionization are then compared with crossed-beams measurements.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
• Sponsoring Organization: USDOE
• OSTI ID: 1523387
• Journal Information: Journal of Physics. B, Atomic, Molecular and Optical Physics, Vol. 51, Issue 1; ISSN 0953-4075
• Country of Publication: United States
• Language: English