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. 2021 Dec 7;14(24):7502. doi: 10.3390/ma14247502

Figure 3.

Figure 3

(a) Inhomogeneous phantom: cross-sectional view, scanning grid (top view), and phantom photo. (b) Dependences of the observed absorption coefficients along the scanning directions 41 (blue dots), 52 (yellow), 63 (green). The scans correspond to the direction along the varying thickness of the inhomogeneity, which corresponds to the changing values of the absorption coefficient. (c) Dependences of the observed attenuation coefficients along the scanning directions AD (blue points), BE (yellow), CF (green). The scans correspond to the direction along the constant thickness of the inhomogeneity, which corresponds to the plateaus in the central region of the scan. (d) Dependence of the absorption coefficient on the thickness of the inhomogeneity along the scan 52.