Mindray DC-25, Руководство по обслуживанию

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B-2 Phantom Usage Illustration
Targets disposal- KS107BD
A1
——A4
Axial resolution target group
B1
——B4
Lateral resolution target group
C Longitudinal target group
D Horizontal target group
E1
——E3
Mimic sacs with diameters of 2, 4, 6mm
4. Line Target System
There are 8 groups of line targets disposed in TM material as shown in the figure.
1
．
A1
——A4
：
Axial resolution target group. The upmost lines in each target locate at the depth of 10, 30,
50, 70mm, the center longitudinal distances of each group (from the top down) are 3, 2, 1,
0.5mm, and the horizontal distance is 1mm.
2
．
B1
——B4 ：
Lateral resolution target group. Locate at a depth of 10, 30, 50, 70mm, with a center
horizontal distance of 4, 3, 2, 1mm in each group.
3
．
C
：
Longitudinal target group. 12 target lines with a 10mm center distance between adjacent
lines.
4
．
D
：
Horizontal target group. Locate at a depth of 40mm, with a 20mm center distance between
adjacent lines.