2012 Articles
Electron-impact-ionization measurements using hyperfine-assisted state preparation of ground-state berylliumlike sulfur
We have measured electron impact ionization (EII) of the beryllium-like ion S¹²⁺. The use of an isotopically pure A=33 beam of S¹²⁺ ions is established as a method to eliminate all metastable levels, including the extremely long-lived metastable level 2s2p 3 P0, which, for this isotope, decays by hyperfine-induced radiative transitions. The energy dependence and absolute size of the EII cross section were measured from the resulting pure ground-state population at energies from below the threshold at ≈ 652.2 eV up to 3000 eV. These data provide an experimental benchmark for theory.
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- PhysRevA.85.042713.pdf application/pdf 228 KB Download File
Also Published In
- Title
- Physical Review A
- DOI
- https://doi.org/10.1103/PhysRevA.85.042713
More About This Work
- Academic Units
- Astronomy and Astrophysics
- Published Here
- March 22, 2013
Notes
View underlying data for this article in Academic Commons at https://doi.org/10.7916/D8FV034Q