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Width of 50% dose level for 18 MV
| Field width at SSD = 100cm (mm) | Width of 50% dose level defined by ”MLC+Jaw” field | Width of 50% dose level defined by ”Jaw only” field (mm) | Width of 50% dose level defined by ”MLC only” field (mm) |
|---|---|---|---|
| 50 | 50.9 | 51.5 | 53.7 |
| 100 | 102.8 | 102.5 | 105.2 |
| 200 | 206.3 | 207.2 | 208.4 |
| 300 | 308.3 | 309.2 | 311.1 |
