Fig. 1. Relationship between X-ray incident angle and relative reflectivity under different energies

Fig. 2. (a) Cross-section of MPO lens; (b) area of interest of square channel

Fig. 3. Measuring system for MPO lens. (a) Schematic of experimental setup; (b) photograph of system; (c) physical map of coating MPO lens

Fig. 4. Focused imaging results at different positions. (a) Simulation; (b) experiment

Fig. 5. Space diagram of focal spot distribution. (a) Simulation; (b) experiment

Fig. 6. SEM images of MPO square channel with coating Ir. (a) Cross section of MPO square channel; (b) enlarged view of selected area

Fig. 7. Focused imaging results of X-ray. (a) Glass; (b) coating Ir

Fig. 8. X-ray intensity distribution curve of focal spot