Figure 7
The region of the Xe 4d photoline in a series of electron time-of-flight average spectra of 1000 shots recorded at the PG2 beamline. The spectrum intensity has been normalized to the Xe 4d5/2 amplitude for comparison. The abscissa values specify the time elapsed after the data acquisition trigger. On this scale, the prompt signal of tTOF = 0 is located at 16.1 ns. With the PG monochromator in first order the photon energy was scanned between 89.09 eV and 88.49 eV in steps of about 0.05 eV. The mean of the corresponding shift in arrival time for each step is = 123 ± 15 ps. The monochromator exit slit was set to 1000 µm, corresponding to a photon energy bandwidth of = 274 meV at = 88.7 eV. The natural linewidth of the Xe 4d core-hole state is 106 meV (Masui et al., 1995). |