Figure 3
Properties of the incident X-rays. (a) Eight randomly chosen LCLS spectra from experiment LG36. Each XFEL pulse has a randomly shaped spectrum with a unique total fluence and mean energy. Each curve is plotted with a separate vertical offset for clarity, but all share the same horizontal scale. (b) Distribution of mean pulse energies used for the simulation (over 10 000 pulses), centered at the Fe K-edge at 7120 eV with a standard deviation of 6.3 eV. (c) Cumulative intensity distribution over 10 000 pulses centered at 7119 eV with a full width at half maximum of 22 eV (0.3% ΔE/E). |