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Treatment beam quality parameters
| Electron beam | R50(cm) | Dmax(cm) |
 (MeV) |
Rp(cm) | Contamination (%) |
|---|---|---|---|---|---|
| Standard 4 MeV | 1.2 | 0.6 | 3.2 | 1.6 | 0.3 |
| Standard 6 MeV | 2.3 | 1.3 | 5.5 | 2.9 | 0.6 |
| 4 MeV TSEI | 0.95 | 0.4 | 2.9 | 1.3 | < 0.001 |
| 6 MeV TSEI | 1.2 | 0.4 | 3.2 | 1.6 | < 0.001 |
Calculated using TG-70: 
.
