Figure 6
From: Tunable X-ray dark-field imaging for sub-resolution feature size quantification in porous media

Left: cross-section through the high-resolution tomogram of the mixed particle dataset (voxel size of 0.653 µm3). In some of the particles larger pores are visible (marked with A) whereas other particles show less or no pores at all (marked with B). Right: the white arrows point to scanning electron microscopy images of the source material with nominal pore sizes of 50 nm (top) and 150 nm (bottom). These nominal pore sizes are determined by mercury intrusion porosimetry and correspond to pore throat sizes.