Modeling of time resolved x-ray diffraction from laser-shocked crystals

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Abstract
The rapid laser driven shock compression of solids is modeled using a hydrodynamiccomputer code. By postprocessing output from these simulations and using a new, efficient x-ray diffraction algorithm we calculate time-dependent x-ray diffractionimages which can be directly compared with experimental x-ray diffraction data. The measurement of shock compression of crystalline solids by x-ray diffraction is illustrated with three examples, one a square wave, and two triangular waves. The development of these waves and the associated x-ray diffractionpatterns are followed as the waves propagate through the crystalline solid and interact with a free surface. Simulated x-ray streak camera data created with this hydrodynamic-x-ray diffraction model are presented and are compared to experimental data.