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Photon energy dependence of ionization-excitation in helium at medium energies
Mid Sweden University.
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1997 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, Vol. 30, no 2, L51-L58 p.Article in journal (Refereed) Published
Abstract [en]

We have measured the photoionization-excitation-to-photoionization ratio for He(+)nl (n = 2-6) at several photon energies from 90 to 900 eV. By extrapolating these values we could determine the asymptotic high-energy ratios for He(+)nl (n = 2-5) which agree with theoretical predictions. We show that the satellite-to-main-line ratios are consistent with experimental double-to-single photoionization ratios and agree well with recent measurements.

Place, publisher, year, edition, pages
1997. Vol. 30, no 2, L51-L58 p.
Keyword [en]
PHOTOIONIZATION CROSS-SECTIONS, PHOTOELECTRON SATELLITES, ANGULAR-DISTRIBUTIONS, THRESHOLD, IMPACT, HE, HE+(N=2), SPECTRUM, ATOMS, NEON
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:miun:diva-1468Local ID: 144OAI: oai:DiVA.org:miun-1468DiVA: diva2:26500
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2011-01-10Bibliographically approved

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Glans, Peter
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