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Figure 9
Peak shift (top) and peak width (bottom) of Ti 1s photoelectrons, observed as a function of XFEL power. Both the peak shift and the peak width are determined by means of a least-squares fitting procedure. The dashed line in the upper figure is an exponential fit to the measured shifts. The shaded area represents the space-charge-induced kinetic energy bandwidth calculated by the mean-field model.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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