Figure 2
(a) Single-shot spectra of XFEL pulses measured with the spectrometer (red curves). Corresponding reflection index, pulse energy and diffraction image measured with the MPCCD detector are shown in each plot. Green curves represent average spectra of monochromated XFEL pulses (ΔEmono/E = 1.3 × 10−4) measured with the spectrometer. (b) Histograms of photon parameters (pulse energy at the optics hutch, photon-energy spread and central photon energy) of 10 keV XFEL pulses before and after machine tuning. |