Table 4 Ratio of HVL values of CdO/HDPE composites to HVL of pure lead at different γ-ray energies.
From: Gamma Attenuation Coefficients of Nano Cadmium Oxide/High density Polyethylene Composites
Energy (keV) | HVLcomposite/HVLlead | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Pure HDPE | 10 wt% CdO | 20 wt% CdO | 30 wt% CdO | 40 wt% CdO | |||||
micro | nano | micro | nano | micro | nano | micro | nano | ||
59.53 | 294.22 | 72.99 | 59.23 | 38.58 | 30.8 | 24.36 | 19.28 | 16.46 | 13.02 |
80.99 | 138.25 | 58.39 | 47.57 | 34.2 | 27.44 | 22.68 | 18.02 | 15.92 | 12.65 |
121.78 | 240.88 | 159.04 | 130.38 | 113.18 | 91.47 | 83.04 | 66.48 | 62.19 | 49.76 |
244.69 | 53.65 | 46.93 | 38.9 | 40.8 | 33.17 | 34.9 | 28.12 | 29.75 | 23.94 |
344.28 | 29.45 | 26.68 | 22.16 | 24.05 | 19.63 | 21.34 | 17.24 | 18.79 | 15.18 |
356.01 | 27.95 | 25.45 | 21.16 | 23.02 | 18.83 | 20.27 | 16.4 | 17.94 | 14.5 |
661.66 | 14.14 | 13.08 | 10.97 | 12.05 | 9.91 | 10.86 | 8.85 | 9.83 | 7.99 |
778.9 | 12.67 | 11.78 | 9.92 | 10.79 | 8.93 | 9.85 | 8.07 | 8.92 | 7.31 |
964.13 | 11.43 | 10.58 | 9.01 | 9.83 | 8.2 | 8.9 | 7.33 | 8.07 | 6.65 |
1173.23 | 10.61 | 9.81 | 8.41 | 9.19 | 7.7 | 8.28 | 6.867 | 7.56 | 6.25 |
1332.5 | 10.36 | 9.63 | 8.34 | 8.91 | 7.54 | 8.16 | 6.82 | 7.4 | 6.16 |
1408.01 | 10.33 | 9.62 | 8.34 | 8.84 | 7.5 | 8.05 | 6.74 | 7.32 | 6.11 |
