Eur. Phys. J. D 59, 161-169 (2010)
https://doi.org/10.1140/epjd/e2010-00153-1

Photoionization of Xe near 5s threshold: II. 5s- main line and satellites

¹ Institut für Physik, Universität Kassel, Heinrich-Plett-Str. 40, 34132, Kassel, Germany
² Rostov State Transport University, 344038 Rostov-on-Don, Russia
³ Fachbereich Physik, Technische Universität Kaiserslautern, Erwin-Schroedinger-strasse, Bau 46, 67653 Kaiserslautern, Germany

Corresponding author: ^a vls@physik.uni-kl.de

Received: 8 October 2009
Revised: 4 March 2010
Published online: 4 June 2010

Abstract

Photon-induced fluorescence spectroscopy was applied to measure absolute fluorescence emission cross sections from the main 5s- and first satellite levels of XeII upon photoionization from XeI in a broad exciting-photon energy range (23–28 eV) with 20 meV bandwidth of the exciting radiation and in a narrow energy range (23.25–23.50 eV) with a bandwidth of 1.8 meV. The average fluorescence resolution amounted to 0.07 nm. Fluorescence emission cross sections were computed with taking into account many-electron correlations and doubly excited states. Computed cross sections, especially in integrated form, agree well with the results of experiment. Many features observed in the high resolution experiment are identified to originate from nf-Rydberg series.