TABLE 1
Effect of B-Shielding on Radiation Doses
Tube current (mA)
Parameter
30
40
50
100
150
200
Dose without shield (mGy)
0.36
0.42
0.48
0.96
1.45
1.93
Dose with shield (mGy)
0.14
0.17
0.19
0.38
0.58
0.77
Reduction (%)
61.1
59.5
60.4
60.4
60.0
60.1