Resonant double photoionization of lithium studied with medium energy resolution
Journal Article
·
· Physical Review. A
- Synchrotron Radiation Center, University of Wisconsin-Madison, Stoughton, Wisconsin 53589 (United States)
We have measured the relative photoionization cross section for the formation of Li{sup 2+} ions between 148 and 161 eV photon energy with higher photon-energy resolution than in previous Li{sup 2+} studies. This energy region is characterized by double and triple excitations that lead to strong enhancements in the Li{sup 2+} cross section. As a result, the double-to-single photoionization ratio shows a dramatic resonance structure not seen before. We have determined the resonance positions and widths using Fano-profile fits to the Li{sup 2+} data and compare them to previously published values and a calculated Li{sup 2+} cross-section curve.
- OSTI ID:
- 20863910
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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