| X-ray machine | Total filtration (mm Al) | kVp | Output with 12˚ | Output with 15˚ | Difference in % |
| 1 | 3.2 | 80 | 53.51 | 55.65 | 3.99 |
| 100 | 76.00 | 79.58 | 4.10 | ||
| 2 | 4.4 | 80 | 39.34 | 40.64 | 3.30 |
| 100 | 58.48 | 60.78 | 3,93 | ||
| 3 | 5.5 | 80 | 31.04 | 31.93 | 2.86 |
| 100 | 47.81 | 49.45 | 3.43 | ||
| 4 | 3.5 | 80 | 49.24 | 51.10 | 3.77 |
| 100 | 70.80 | 73.97 | 4.47 | ||
| 5 | 3 | 80 | 56.72 | 59.09 | 4.17 |
| 100 | 79.87 | 83.78 | 4.89 |