NCRP-147 Shielding Models 147 Shielding Models - Radiation ...
NCRP-147 Shielding Models 147 Shielding Models - Radiation ...
NCRP-147 Shielding Models 147 Shielding Models - Radiation ...
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New Leakage Model<br />
• Estimate thickness of tube housing by using primary beam<br />
output at leakage technique factors as model for unhoused<br />
leakage radiation.<br />
1931 mGy/hr 100 mR/hr = 0.873 mGy/hr<br />
1 m<br />
Tube operated at<br />
150 kVp, 3.3 mA<br />
1 m<br />
“unhoused”<br />
tube<br />
Tube housing<br />
= 2.32 mm Pb<br />
thick<br />
1 m 1 m<br />
1931 mGy/hr 1931 mGy/hr<br />
30