Figure 1 | Scientific Reports

Figure 1

From: Experimental Realisation of High-sensitivity Laboratory X-ray Grating-based Phase-contrast Computed Tomography

Figure 1

Schematic of a gbPC-CT setup.

From left to right: the X-ray source, the three gratings source, phase and analyser grating with their corresponding periods p0, p1 and p2 followed by the detector. The source grating is placed at distance s away from the source and the object is placed at distance r away from the source grating inducing a refraction angle of α, which is increased by a factor (l + s)/(r + s) taking into account the magnification of α by the distance from the object to the phase grating11. The figure is not to scale as in particular the refractive angle and grating periods are much smaller.

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