Figure 3
Calculated diffraction efficiencies for four iridium FZP types considering an X-ray energy range from 6 to 12 keV. The diffraction efficiencies of the zone-doubled and zone-filled FZPs are about 35% lower than those from ordinary FZPs. The four-step staircase FZP displays a remarkable diffraction efficiency increase. The iridium L absorption edge generates an abrupt decrease of the diffraction efficiency at an energy of 11.2 keV.  [article HTML]