High-resolution absolute photoabsorption cross sections for Ne in the 1s2s and 1s2p resonant double excitation (original) (raw)
2006, Journal of Physics B: Atomic, Molecular and Optical Physics
The high-resolution absolute photoabsorption cross sections with an absolute photon energy scale for Ne 1s2p/1s2s double excitation in the energy region of 900-940 eV have been measured using a multi-electrode ionization chamber and monochromatized synchrotron radiation. The Ne [1s2p](3,1 P)nln l doubly excited states observed in the energy range of 900-920 eV are analysed with the aid of theoretical calculations based on the multiconfiguration Dirac-Fock method. The second strongest peak in this energy region is assigned to be [1s2p](3 P)3p4p.
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