Fig. 1. Schematic diagram of X-ray CsI (Tl) scintillation screen model based on macroporous silicon

Fig. 2. Schematic diagram of Compton effect

Fig. 3. Schematic diagram of X-ray detection system

Fig. 4. X-ray energy versus number of output photons

Fig. 5. Simulation relationship between scintillation screen thickness and output photon number under different X-ray energies

Fig. 6. 50 pixel×50 pixel area grayscale photographs of X-ray images on 150-μm thick scintillation screen under different voltages. (a) Voltage is 80 kV; (b) voltage is 90 kV; (c) voltage is 100 kV; (d) voltage is 110 kV; (e) voltage is 120 kV; (f) voltage is 130 kV; (g) voltage is 140 kV; (h) voltage is 150 kV; (i) voltage is 160 kV

Fig. 7. 50 pixel×50 pixel area grayscale photographs of X-ray images on 310-μm thick scintillation screen under different voltages. (a) Voltage is 80 kV; (b) voltage is 90 kV; (c) voltage is 100 kV; (d) voltage is 110 kV; (e) voltage is 120 kV; (f) voltage is 130 kV; (g) voltage is 140 kV; (h) voltage is 150 kV; (i) voltage is 160 kV

Fig. 8. Curve diagram of relationship between tube voltage of X-ray source and average gray value of scintillation screen with different thicknesses

Fig. 9. Curve diagram of relationship between tube current of X-ray source and average gray value of scintillation screen with different thicknesses. (a) Thickness is 150 μm; (b) thickness is 310 μm