Fig. 6: Thermal propagation in the bulk pellet.

Multiscale evolution (from ps to ms) of the normalized λ fraction (ΔXλ) as extracted from time resolved XRD measurements at the ESRF beamline ID09 (magenta squares, X-ray energy E = 11.5 keV, incident angle ψ = 0.35°). The fractional change is normalized to the maximum value for allowing a direct comparison with the evolution observed at SwissFEL Bernina (gray triangles). Long time delays are presented on a logarithmic time scale.