Table 2.
Aperture diameter, field diameter (upstream of the aperture), beam energy, range and modulation widths (for a spread-out Bragg peak), and gantry angle for the considered fields.
| Patient | Field | Aperture Diameter [cm] | Field Diameter [cm] | Beam energy at nozzle entrance [MeV] | SOBP Range [cm] | SOBP Modulation width [cm] | Gantry Angle [deg] |
|---|---|---|---|---|---|---|---|
| 1 | 3 | 12 | 169.2 | 10 | 5 | 90 | |
| 2 | 6 | 12 | 169.2 | 10 | 5 | 90 | |
| 3 | 9 | 12 | 169.2 | 10 | 5 | 90 | |
| 4 | 3 | 12 | 178.3 | 15 | 10 | 90 | |
| 5 | 6 | 12 | 178.3 | 15 | 10 | 90 | |
| 6 | 9 | 12 | 178.3 | 15 | 10 | 90 | |
| 1 | 7 | approx. 9.1 | 12 | 164.0 | 9.2 | 7.9 | 90 |
| 2 | 8 | approx. 6.4 | 12 | 180.1 | 11.8 | 9.5 | 130 |