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Dose variation (in percentage) for a pair of parallel‐opposed 6 MV beams incident on phantom B with cork inhomogeneity.
| 6 MV | ||||
|---|---|---|---|---|
| Beam configuration | Isocenter plane | RS | CS | LS |
| RLAT with CF; LLAT without CF | CS | 4.2 | 5.3 | 4.8 |
| Parallel‐opposed compensated | CS | 5.2 | 1.4 | 4.5 |
| RLAT with CF; LLAT without CF | RS | 7.0 | 11.8 | 10.6 |
| Parallel‐opposed compensated | RS | 1.5 | 2.5 | 2.5 |
| RLAT with CF; LLAT without CF | LS | 3.9 | 1.0 | 2.0 |
| Parallel‐opposed compensated | LS | 4.2 | 1.0 | 2.1 |
