Varying Collimation for Dark-Field Extraction

Table 1

X-ray absorption and scattering coefficients at 50 KeV of the phantom components.

Material	Absorption Coefficient (cm^−1)	Scattering coefficients (𝜇s=𝜇s_r +𝜇s_c ) (cm^−1)
		𝜇s_r	𝜇s_c	𝜇s_r/(𝜇s_r+𝜇s_c)
Water	0.028	0.0140	0.1680	0.0769
Cube 1	0.028	0.0035	0.1785	0.0193
Cube 2	0.028	0.0070	0.1750	0.0385
Cube 3	0.028	0.0260	0.1560	0.1429
Cube 4	0.028	0.0520	0.1300	0.2858