Figure 4
Flat-field response of C7942. The data were recorded at BL20B2 with an X-ray energy of 18 keV. Flat field was achieved by moving the detector across the X-ray beam that was larger than one dimension of the detector. Dark-field images were subtracted. (a) Intensity distribution along a vertical one-pixel section. (b) Intensity distribution along a horizontal one-pixel section. |