Table 3.

Parameters for 17 disks of the 2D phantom.

Obj.	Center(cm)	Radius (cm)	Material
0	(0.000,0.000)	0.9	Soft Tissue
1	(0.550,0.000)	0.15	12.4%Ca + 87.6%Water
2	(0.275,−0.4763)	0.15	6.2%Ca + 93.8%Water
3	(−0.275,−0.4763)	0.15	1.2%Iodine + 98.8%Water
4	(−0.550,0.000)	0.15	1.4%Barium + 98.6%Water
5	(−0.275,0.4763)	0.15	1.5%Gadolinium + 98.5%Water
6	(0.275,0.4763)	0.15	1.6%Gold + 98.4%Water
7	(0.275,0.000)	0.08	12.4%Ca + 87.6%Water
8	(0.1375,−0.23815)	0.07	6.2%Ca + 93.8%Water
9	(−0.1375,−0.23815)	0.06	1.2%Iodine + 98.8%Water
10	(−0.275,0.000)	0.05	1.4%Barium + 98.6%Water
11	(−0.1375,0.23815)	0.04	1.5%Gadolinium + 98.5%Water
12	(0.1375,0.23815)	0.03	1.6%Gold + 98.4%Water
13	(0.000,−0.100)	0.02	1.2%Iodine + 98.8%Water
14	(0.100,0.000)	0.015	1.2%Iodine + 98.8%Water
15	(0.000,0.100)	0.01	1.2%Iodine + 98.8%Water
16	(−0.100,0.000)	0.005	1.2%Iodine + 98.8%Water