Fig. 1. Rocking curve of Ge 111 samples of different thicknesses around the Bragg angles at 8047.8 eV. Full curves correspond to calculations based on the standard methods of the XOP package^32,33 and dashed curves to the present 1D model as discussed in the text.

Fig. 2. Snapshots at different times of the thermal-electron temperature in a 1 µm thick Ni foil. The hot-electron beam comes from the right. The parameters of the simulation are given in the text.

Fig. 3. Snapshots at different times of the Kα₁ emission from a Ni sample as a function of the observation angle. The parameters of the simulation correspond to Fig. 2.

Fig. 4. Snapshots at different times of the Kα₁ emission from a Ni sample as a function of the observation angle. The parameters of the simulation are given in the text. The inset is a zoom of the emission at the time of maximum emission. The dashed line is the broadened profile when the FWHM energy broadening of the Kα₁ line is taken into account.

Fig. 5. Kossel patterns of the Kα emission from a 100 nm thick Ni sample at different times. The irradiation parameters of the simulation are those of Fig. 3.

Fig. 6. Snapshots at different times of the Kα₁ emission from a Mo sample as a function of the observation angle. The parameters of the simulation are given in the text. The inset is a zoom of the emission at the time of maximum emission. The dashed line is the broadened profile when the FWHM energy broadening of the Kα₁ line is taken into account.

Fig. 7. Snapshots at different times of the Mg Kα emission from a 1 µm thick multilayer (Mg/Co)₁₂₅ as a function of the observation angle. The parameters of the simulation are given in the text. Kossel patterns are labeled by their Bragg order.

Fig. 8. Snapshots at different times during a phonon oscillation, of the Kα emission from a 400 nm thick Ni sample as a function of the observation angle around the Bragg angle. The parameters of the simulation are given in the text.

Fig. 9. Geometry of a possible experimental setup for pump–probe Kossel diffraction experiments.

Fig. 10. Another possible experimental setup for pump–probe transmission Kossel diffraction experiments.