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Beam matching criteria currently used for Elekta linacs with Agility heads in this study. Each parameter is compared to a reference. Profile points are taken to be within 80% of the field size
| Modality | Parameter | Tolerance |
|---|---|---|
| Photons | PDD20,10 | 0.5% |
| PDD points | 0.5% | |
| Profile points | 1.0% | |
| Wedge profile points | 2.0% | |
| Electrons | R50 | 0.5 mm |
| Profile points | 1.0% |
