Fig. 13 | Scientific Data

Fig. 13

From: Full scale, microscopically resolved tomographies of sandstone and carbonate rocks augmented by experimental porosity and permeability values

Fig. 13The alternative text for this image may have been generated using AI.

Image cross section of reference region 1A obtained from the vertical bar pattern reference. Measurement of the cross sections obtained from the bar pattern reference with linewidths between 10-2 μm. Image contrast was estimated according to Eq. 2 by calculating a linear fit passing through the maximum and minimum points shown in red. The calculated contrast values were approximately 0.22, 0.17 and 0.07 respectively for 10 μm, 8 μm and 6 μm. Peak distance was obtained from fitting a Gaussian curve in subsequent peaks and calculating the distances between the curve centers. The estimated peak distances were approximately 9 μm, 7 μm and 6 μm for 10 μm, 8 μm, and 6 μm lines respectively. Neither contrast nor peak distance was calculated for 4 μm and 2 μm due to the profiles not showing well resolved peaks.

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