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Single photoionization of the Zn II ion in the photon energy range 17.5-90.0 eV: experiment and theory
Davis, V. T.
Covington, A. M.
Thompson, J. S.
Kilcoyne, A. L. D.
Hernandez, E. M.
Juarez, A. M.
McLaughlin, B. M.
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Measurements of the single-photoionization cross-section of Cu-like Zn+ ions are reported in the energy (wavelength) range 17.5 eV (708 angstrom) to 90 eV (138 angstrom). The measurements on this trans-Fe element were performed at the Advanced Light Source synchrotron radiation facility in Berkeley, California at a photon energy resolution of 17 meV using the photon-ion merged-beams end-station. Below 30 eV, the spectrum is dominated by excitation autoionizing resonance states. The experimental results are compared with large-scale photoionization cross-section calculations performed using a Dirac Coulomb R-matrix approximation. Comparisons are made with previous experimental studies, resonance states are identified and contributions from metastable states of Zn+ are determined.
|Journal Title||Monthly Notices of the Royal Astronomical Society|
|Rights||Creative Commons Attribution 4.0 International|
|Rights Holder||This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2017 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.|