Fig. 1. Diagram of effect of X-ray on single scattering point

Fig. 2. Scattering correction process flow chart

Fig. 3. Schematic of scattering point setting

Fig. 4. Schematic diagram of simulation system

Fig. 5. Scattering proportion distributions of simple model. (a) Produced by point; (b) produced by line; (c) produced by plane

Fig. 6. Reconstructions of aluminum cylinder. (a) Scattering distribution produced by the aluminum cylinder; (b) result without scattering correction; (c) result with scattering correction; (d) profile of CT values on the red line in Fig. 6 (b)-Fig. 6 (c)

Fig. 7. Projection distributions under different T values. (a) Projection without correction; (b) projection at T=0.3125; (c) projection at T=0.6583; (d) projection at T=0.9470

Fig. 8. Contrast diagrams of correction effect. (a) Correction with BSA; (b) correction with proposed method; (c) CT value in center location with BSA; (d) CT value in center location with proposed method

Fig. 9. Reconstructions of industrial components. (a) Result without scattering correction; (b) result with scattering correction; (c) another layer of image results without correction; (d) another layer of image results with correction; (e) and (f) local magnified images of Fig. 9(c) and Fig. 9(d), respectively; (g) profiles of CT values on the red line in Fig. 9(a) and Fig. 9(b)

Table 1. Quantitative analysis of aluminium cylinder

Table 2. Quantitative analysis of the industrial component