TABLE 4.
Average value of differences between absorbed doses from experimental measurement and estimated by DPM, MCNP, and EGSnrc MC codes for the depth dose setup. The standard deviation in the dose rate is calculated across repeat measurements for each film depth
| Experiment | Repeat measurements | Depth (mm) | Experiment dose rate (μGy/GBq × s) | DPM vs. Experiment (%) | MCNP vs. Experiment (%) | EGSnrc vs. Experiment (%) |
|---|---|---|---|---|---|---|
| Lu177DD,S,25.4 | 2 | 0.2032 | 132.1 ± 0.1 | −8.0 | −5.6 | −5.9 |
| 0.4812 | 23.6 ± 0.1 | −3.5 | 1.3 | 0.3 | ||
| 0.7592 | 8.9 ± 0.0 | 1.6 | 3.2 | 5.9 | ||
| 1.0372 | 7.2 ± 0.2 | 5.6 | 7.6 | 9.1 | ||
| 1.3152 | 6.6 ± 0.4 | 10.5 | 9.4 | 14.0 | ||
| Y90DD,S,25.4 | 3 | 0.2032 | 3371.2 ± 237.6 | 2.2 | 3.4 | 3.5 |
| 0.4812 | 2601.4 ± 102.3 | 2.6 | 3.7 | 3.8 | ||
| 0.7592 | 2050.9 ± 34.4 | 2.7 | 4.0 | 4.0 | ||
| 1.0372 | 1614.3 ± 34.2 | 3.8 | 5.3 | 5.0 | ||
| 1.3152 | 1290.7 ± 25.8 | 3.2 | 4.8 | 4.4 | ||
| 1.5932 | 983.5 ± 24.5 | 7.6 | 9.4 | 8.6 | ||
| 1.8712 | 791.1 ± 16.3 | 5.8 | 7.5 | 6.6 | ||
| 2.1492 | 626.2 ± 20.7 | 4.9 | 6.9 | 5.4 | ||
| 2.4272 | 483.7 ± 11.5 | 5.6 | 8.0 | 6.2 | ||
| 2.7052 | 384.4 ± 14.3 | 1.8 | 5.3 | 3.4 |