Technical Reference
9-19
Horizontal Plane& Vertical Plane Test
This test is performed at in fluoroscopic mode in 70kV, 3mA, without shielding.
Horizontal Plane
The following illustration shows measurement points in a plane perpendicular to the beam axis at a
height indicated by reference point C1. C1 is the 30-inch SSD, and
is illustrated in the Vertical Plane
illustration, be
low.
The measurement points are 25 cm apart. The table following the illustration
shows expected scatter radiation at each point.
Point
Dose Rate
3.32 mG
y
/hr
0.67 mG
y
/hr
0.28 mG
y
/hr
0.19 mG
y
/hr
S1
3.60 mG
y
/hr
S2
0.81 mG
y
/hr
S3
0.36 mG
y
/hr
S4
0.19 mG
y
/hr
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