Absolute cross sections for photoionization of Xeq + ions (1 ≤ q ≤ 5) at the 3d ionization threshold.
In: Journal of Physics B: Atomic, Molecular and Optical, 2014
Online
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Zugriff:
The photon-ion merged-beams technique has been employed at the new Photon-Ion spectrometer at PETRA III for measuring multiple photoionization of Xeq + (q = 1–5) ions. Total ionization cross sections have been obtained on an absolute scale for the dominant ionization reactions of the type hν + Xeq + → Xer + + (q − r)e− with product charge states q + 2 ≤ r ≤ q + 5. Prominent ionization features are observed in the photon-energy range 650–750 eV, which are associated with excitation or ionization of an inner-shell 3d electron. Single-configuration Dirac–Fock calculations agree quantitatively with the experimental cross sections for non-resonant photoabsorption, but fail to reproduce all details of the measured ionization resonance structures.
Titel: |
Absolute cross sections for photoionization of Xeq + ions (1 ≤ q ≤ 5) at the 3d ionization threshold.
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Autor/in / Beteiligte Person: | Schippers, S. ; Ricz, S. ; Buhr, T. ; Borovik, A. ; Hellhund, J. ; Holste, K. ; Huber, K. ; Schäfer, H. ; Schury, D. ; Klumpp, S. ; Mertens, K. ; Martins, M. ; Flesch, R. ; Ulrich, G. ; Rühl, E. ; Jahnke, T. ; Lower, J. ; Metz, D. ; Schmidt, L. ; Schöffler, M. ; Williams, J. ; Glaser, L. ; Scholz, F. ; Seltmann, J. ; Viefhaus, J. ; Dorn, A. ; Wolf, A. ; Ullrich, J. ; Müller, A. |
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Zeitschrift: | Journal of Physics B: Atomic, Molecular and Optical, 2014 |
Veröffentlichung: | 2014 |
Medientyp: | academicJournal |
DOI: | 10.1088/0953-4075/47/11/115602 |
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