Fig. 1. Structural diagram of meridional lobster-eye lens. (a) Front view; (b) side view

Fig. 2. Schematic of single reflection imaging mechanism of meridian lobster-eye lens

Fig. 3. Prism expansion method of meridional lobster-eye lens

Fig. 4. Relationship between R_ref and θ for different coating materials when σ=1×10^-10 m and Δ=5×10^-9 m. (a) Ir; (b) Ni

Fig. 5. Schematic of ideal surface plate reflection. (a) Front view; (b) side view

Fig. 6. Relationship between R_ref and θ for different X-ray energies when coating material is Ir and Δ=5×10^-9 m. (a) E=1 keV; (b) E=10 keV

Fig. 7. Relationship between R_ref and θ for different X-ray energies when coating material is Ir . (a) E=1 keV; (b) E=10 keV

Fig. 8. Intensity distributions of focal spot under different coating characteristics. (a) F_FOV=2°,σ=1×10^-10 m,Δ=5×10^-9 m, and coating material of Ir; (b) F_FOV=2°,σ=1×10^-10 m, E=10 keV,and coating material of Ir; (c) F_FOV=2°,Δ=5×10^-9 m,E=10 keV,and coating material of Ir; (d) F_FOV=2°,σ=1×10^-10 m,E=10 keV,Δ=5×10^-

Fig. 9. Intensity distributions of focal spot for different X-ray energies when σ=1×10^-10 m, Δ=5×10^-9 m and coating material is Ir. (a) E=10 keV; (b) E=5 keV

Fig. 10. 3D distribution of lens focusing spot. (a) F_FOV=2°,E=10 keV; (b) F_FOV=3°,E=10 keV