Single photoionization cross section measurements of Au+ ions and first determinations of excited state levels in Au2+
Abstract
Single photoionization cross-section measurements of Au+ ions were performed using synchrotron radiation and the photo-ion, merged-beams technique at the Advanced Light Source at Lawrence Berkeley National Laboratory. Measurements were made at a photon energy resolution of 18 meV from 18.06 to 25.57 eV spanning the 1S0 ground state and 3D3 metastable state ionization thresholds. Multiple autoionizing resonance series are identified using quantum defect theory. These series identifications were used to make preliminary determinations of low-lying excited state energy levels in the product Au2+ ion, representing the first experimental determination of these levels.
- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- April 2017
- Bibcode:
- 2017APS..DMP.Q1160M