Figure 3
Spectrum of a SASE pulse incident on the bent-crystal spectrometers (grey lines) and spectra of the diffracted waves for the C*(220) reflection from a 20 µm-thick crystal (red lines) and for the Si(440) reflection from a 10 µm-thick crystal (blue lines), both bent to a radius of 0.1 m. Fraunhofer diffraction. (a) Whole spectrum, (b) magnified central part. |