Article Figures & Data
Figures
- FIGURE 1.
Absorbent pads and 0.28 m2 (3 ft2) plywood sample boxes ready for controlled 90Y-RM spill.
- FIGURE 2.
Percentage exposure decrease among all 90Y-RM cleaning methods.
- FIGURE 3.
90Y-RM postdecontamination percentage exposure decrease between damp paper towels and SWM (Wilcoxon P = 0.6826, Ansari–Bradley P = 0.2501).
Tables
Cleaning method Label n Mean SD Median Minimum Maximum Damp paper towels Measured mass (mg) 10 64.9 5.2 64.0 58.0 76.0 Estimated activity (μCi) of spill 10 1.8 0.1 1.7 1.6 2.1 Percentage exposure decrease 10 98.1 2.5 99.0 91.7 99.9 Precleaning exposure (mR/h) 10 102.0 59.2 70.0 50.0 200.0 Postcleaning exposure (mR/h) 10 1.8 1.9 1.0 0.1 5.0 Adhesive paper Measured mass (mg) 10 119.3 8.0 118.0 107.0 135.0 Estimated activity (μCi) of spill 10 2.2 0.1 2.1 1.9 2.5 Percent exposure decrease 10 72.8 20.8 78.2 29.6 92.5 Precleaning exposure (mR/h) 10 105.0 24.9 105.0 55.0 140.0 Postcleaning exposure (mR/h) 10 29.7 27.5 17.5 6.0 95.0 SWM Measured mass (mg) 10 115.3 12.5 116.5 90.0 130.0 Estimated activity (μCi) of spill 10 1.8 0.2 1.9 1.4 2.1 Percentage exposure decrease 10 98.7 1.8 99.2 93.8 99.9 Precleaning exposure (mR/h) 10 81.4 28.8 77.5 48.0 150.0 Postcleaning exposure (mR/h) 10 1.0 1.5 0.5 0.1 5.0 Curie conversion factor: μCi × 37 = kBq.
