Figure 7
(a) Simulated X-ray spectrum from a typical APS undulator source (U18Gap13), through a 1 mm × 1 mm pinhole located 35 m away from the source. U18Gap13: undulator with a period of 18 mm and a gap of 13 mm; electron energy is 7 GeV and the current is 100 mA. The spectral flux is normalized by the peak value. (b) Gaussian-shaped spectrum (8% bandwidth). Both spectra peak at 0.5604 Å. |