Figure 1 | Scientific Reports

Figure 1

From: X-ray ptychographic computed tomography at 16 nm isotropic 3D resolution

Figure 1

Tomography setup, composed of X-ray optics and sample stage units.

The optics stage contains a central stop (CS), a Fresnel zone plate (FZP) and an order-sorting aperture (OSA) for conditioning the X-ray beam. The sample stage performs the 2D scans and allows a rotation θy around the y-axis for tomography. The relative position of sample and optics Δx and Δy, as well as the wobble angle of the sample stage θz is measured via optical interferometry.

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