Figure 1 | Scientific Reports

Figure 1

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

Figure 1

Schematic X-ray grating interferometry setup. Compared to conventional µCT, two gratings (G1 and G2) are added. To change the correlation length (\(\upxi \)) the sample can be moved back and forth in the direction of the beam. Phase stepping (PS) involves moving G2 perpendicular to the beam, resulting in an intensity oscillation at each detector pixel. Dimensions not to scale.

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