Abstract
Absolute single photoionization cross-section measurements of Rb2+ 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 13.5 2.5 meV from 37.31 to 44.08 eV spanning the 2P ground state and 2P metastable state ionization thresholds. Multiple autoionizing resonance series arising from each initial state are identified using quantum defect theory. The measurements are compared to Breit-Pauli R-matrix calculations with excellent agreement between theory and experiment.
| Original language | English |
|---|---|
| Article number | 235002 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 49 |
| Issue number | 23 |
| DOIs | |
| State | Published - Nov 14 2016 |
Funding
We gratefully acknowledge support from the NSF through award AST-1412928. D Macaluso gratefully acknowledges support from the Montana Space Grant Consortium. R Bilodeau gratefully acknowledges support from the US Department of Energy, office of Science, Basic Energy Sciences (BES), Division of Chemical Sciences, Geosciences, and Biosciences under grants Nos. DE-SC0012376. Data acquired at beamline 10.0.1.2 at the Advanced Light Source, which is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract No. DE-AC02-05CH11231.
| Funder number |
|---|
| AST-1412928, 1412928 |
| DE-AC02-05CH11231 |
| DE-SC0012376 |
Keywords
- absolute cross section
- photoionization
- rubidium
- rubidium ions
- synchrotron