Figure 4
(a)–(c) Diffraction efficiency maps recorded with the X-ray tube setup at an X-ray energy of 8.4 keV and an exposure time of 1400 s. (d)–(f) Diffraction efficiency maps of the same three zone plates made at the ANATOMIX beamline of Synchrotron SOLEIL at an X-ray energy of 10 keV with an exposure time of 2 s. The zeroth-order counts in the centre of the maps have been subtracted. |