Table 2.

Calculated and measured ${\overline{\mu }}_{m,E_{\mathrm{1,2}}}^{*}$ values for the CIRS phantom materials.

Material	Measured		Calculated		% Error
	80 kVp	130 kVp	80 kVp	130 kVp	80 kVp	130 kVp
Adipose	0.964	0.982	0.963	0.982	−0.1	0.0
Breast	0.979	0.989	0.976	0.988	−0.3	−0.1
Muscle	1.009	1.005	1.001	1.001	−0.8	−0.4
Liver	1.009	1.003	1.002	1.001	−0.7	−0.2
Bone (200 mg/cm3 HA)	1.189	1.095	1.167	1.083	−1.9	−1.1
Bone (800 mg/cm3 HA)	1.547	1.271	1.546	1.271	−0.1	0.0
Bone (1250 mg/cm3 HA)	1.708	1.350	1.720	1.356	0.7	0.4