Novel applications of X-ray topography for studying materials with extreme absorption, thickness and density characteristics

X-ray topography in projection and plane wave arrangements was applied to highly absorbing matter and structures with density gradients. Under extremely high absorption conditions, the visibility of lattice dislocations in projection Bragg geometry was investigated. The sensitivity of phase contrast imaging to porosity in low absorbing solids was demonstrated. The obtained diffraction and phase contrast images were compared with Synchrotron Radiation data.