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Figure 4. Phase contrast images of a 1-day-old male mouse imaged at 33 keV. (a) Propagation-based imaging (PBI) with l2=4.26 m. Image size: 34.61 mm x 13.26 mm. Black region of interest (ROI): 150 x 150 pixels. White ROI: 40 x 40 pixels. Exposure time: 5.0 s. Surface entrance dose: 8.6±0.3 mGy. (b) Analyser-based imaging (ABI) image of the same mouse. Image size: 45.66 mm x 11.10 mm. Black ROI: 150 x 150 pixels. White ROI: 40 x 40 pixels. Exposure time: 0.5 s. Surface entrance dose: 0.92±0.03 mGy.
