Table 7.

Information about the four sets of X-ray CT scans that were carried out on two of samples from the three sample sets.

Sample	Voxel size	Image size	Number of images	Average porosity and standard deviation (%) in z direction for entire image set	Threshold for pore-solid (gray scale)
1–5D	0.87 µm	984 × 1009	851	10.650 ± 2.550	32 000
1–5D	2.44 µm	978 × 979	801	11.230 ± 1.390	32 000
1–2D	0.82 µm	976 × 1012	851	0.895 ± 0.434	32 000
1–2D	2.54 µm	976 × 978	851	1.305 ± 0.268	40 000