Table 5.
IMRT QA with MU/Gy TPS beam model error: individual pass rates with gamma evaluation of 3%, 3 mm, before and after the error was induced.
Field | MapCHECK (before) | MapCHECK (after) | EPIDose (before) | EPIDose (after) | PV (before) | PV (after) |
---|---|---|---|---|---|---|
1 | 98.6 | 45.3 | 97.7 | 49.3 | 97.8 | 98.6 |
2 | 100. | 49.1 | 99.4 | 61.4 | 97.5 | 98.5 |
3 | 100. | 52.6 | 99.4 | 50.7 | 98.9 | 98.9 |
4 | 100. | 44.0 | 97.0 | 48.3 | 96.7 | 97.3 |
5 | 99.5 | 51.0 | 99.3 | 52.2 | 98.2 | 98.5 |
Average | 99.6 | 48.5 | 98.6 | 52.4 | 97.8 | 98.4 |