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Single photoionization of the Zn II ion in the photon energy range 17.5-90.0 eV: experiment and theory

G. Hinojosa ; V. T. Davis ; A. M. Covington ; J. S. Thompson ; A. L. D. Kilcoyne ; A. Antillon ; E. M. Hernandez ; D. Calabrese ; A. Morales-Mori ; A. M. Juarez ; Olle Windelius (Institutionen för fysik (Chalmers)) ; B. M. McLaughlin
Monthly notices of the Royal Astronomical Society (0035-8711). Vol. 470 (2017), 4, p. 4048-4060.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: atomic data, atomic processes, scattering



Denna post skapades 2017-10-02.
CPL Pubid: 252172

 

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Institutionen för fysik (Chalmers)

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Astronomi, astrofysik och kosmologi

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