Near-threshold multielectronic effects in the Cu [Formula Presented] x-ray spectrum

S. Galambosi, H. Sutinen, A. Mattila, K. Hämäläinen, R. Sharon, C. C. Kao, M. Deutsch

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The variation with excitation energy of the line shapes of the Cu [Formula Presented] x-ray spectrum was measured with high energy resolution near the K-shell threshold. Fits with ab initio Dirac-Fock calculated spectra allow us to estimate separately the magnitudes and energy variations of the [Formula Presented] electron shakeup and shakeoff probabilities from threshold to saturation. The Thomas model is found to account well for the intensity evolution, in contrast with shakeoff from deeper shells. A suggested, yet unexplained, strong dependence of the shakeoff intensity saturation range on the shell number is confirmed.

Original languageEnglish
Pages (from-to)5
Number of pages1
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number2
StatePublished - 2003


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