Ionization excitation of helium by the (e,2e) reaction
Journal Article
·
· Physical Review. A
- Department of Physics and Key Laboratory of Atomic and Molecular NanoSciences of MOE, Tsinghua University, Beijing 100084 (China)
The (e,2e) cross sections for transitions to the n=1, 2, and 3 final state of He{sup +} have been measured at impact energies of 1000 and 1600 eV by using a newly developed energy and momentum dispersive spectrometer. Binding energy spectra in the range of 8 to 86 eV and momentum profiles for the transitions to the ground and excited ion states of He{sup +} are reported at different impact energies, and the experimental results are compared with plane wave impulse approximation calculations. The impact energy dependence of cross section ratios for the He{sup +} n=1, 2, and 3 final states are obtained. Some discrepancies are observed between experimental data and theoretical calculations.
- OSTI ID:
- 20718754
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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