Figure 2
From: X-ray induced dimerization of cinnamic acid: Time-resolved inelastic X-ray scattering study

The time-resolved carbon core-electron excitation spectra from the experiment.
(a,b) The spectra of the CA and TA samples, respectively, after the X-ray irradiation times as shown. The isosbestic points in the TA spectra series are marked with circles. (c) Comparisons of the spectra of the CA and TA samples at selected times.