Photoionization cross section measurements of the 3p {sup 1,3}P excited states of helium in the near-threshold region
Journal Article
·
· Physical Review. A
- Atomic and Molecular Physics Laboratory, Department of Physics, Quaid-i-Azam University, Islamabad 45320 (Pakistan)
We present measurements of photoionization cross sections of the 3p {sup 1}P and 3p {sup 3}P excited states of helium, at threshold and near-threshold region (0-0.2 Ry). The experiments have been performed using a dc glow discharge and employed the saturation technique to determine the photoionization cross sections. A smooth frequency dependence of the cross section has been observed for both the excited states in accordance to the theoretical calculations. The measured values of the photoionization cross section, using a simple experimental setup, are in good agreement with the earlier reported theoretical and experimental values.
- OSTI ID:
- 20853076
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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