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. 2023 Feb 1;30(Pt 2):390–399. doi: 10.1107/S1600577522012103

Table 3. Parameters of the near-field ptychography measurements.

Parameter Near-field ptychography
Sample Spider hair/tardigrade
Energy 11 keV
Sample–detector distance 20.45 m
FZP diameter 300 µm
FZP d r 50 nm
Defocus distance of sample y 1 36.8 mm
Resolution (2D) 177 nm/115 nm
Scan points 6 × 6
Step size (random) 1 ± 0.5 µm
Exposure time per point 1000 ms