Separation of Two-Electron Photoexcited Atomic Processes near the Inner-Shell Threshold
Journal Article
·
· Physical Review Letters
- J. Stefan Institute, Jamova 39, SI-1000, Ljubljana (Slovenia)
- Physics Department, University of Fribourg, CH-1700 Fribourg (Switzerland)
- European Synchrotron Radiation Facilty (ESRF), Grenoble (France)
By means of a high resolution resonant inelastic x-ray scattering spectroscopy, we have for the first time separated spectral features pertaining to different two-electron atomic processes in the vicinity of an inner-shell threshold. Contributions of shakeoff, shakeup, and resonant 1s3p double excitations were extracted from the Ar KM-M{sub 2,3}M x-ray satellite line intensity measured as a function of photon energy from [1s3p] double excitation threshold to saturation. The isolated [1s3p]nln{sup '}l{sup '} excitation spectrum is critically compared to the outcome of the multiconfiguration Dirac-Fock model with relaxation.
- OSTI ID:
- 21180356
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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