Table 1.
The measured Sc values at 10 cm depth for Siemens (Primus and Artiste) and Varian (Clinac iX) linear accelerators at 100 cm SSD.
| Field size (cm2) | 6MV-FB Siemens (Primus) | 6MV-FB Siemens (Artiste) | 7MV-UFB Siemens (Artiste) | 6MV-FB Varian (Clinac iX) |
|---|---|---|---|---|
| 5 | 0.961 | 0.968 | 0.988 | 0.964 |
| 8 | 0.988 | 0.991 | 0.997 | 0.989 |
| 10 | 1.000 | 1.000 | 1.000 | 1.000 |
| 12 | 1.009 | 1.006 | 1.003 | 1.009 |
| 15 | 1.018 | 1.012 | 1.006 | 1.015 |
| 20 | 1.025 | 1.0200 | 1.007 | 1.025 |
| 25 | 1.028 | 1.023 | 1.009 | 1.032 |
| 30 | 1.032 | 1.025 | 1.009 | 1.037 |
| 35 | 1.033 | 1.026 | 1.010 | 1.042 |
| 40 | 1.033 | 1.025 | 1.010 | 1.048 |