CNRs in Collimators with Different Crystal Pixel Sizes, Hole Diameters, and Septal Lengths
| Type of collimator | Hole diameter (mm) | Pixel size (mm2) | ||
| 1 | 4 | 9 | ||
| High sensitivity | 0.5 | 13.49 | 34.43 | 45.16 |
| 1 | 11.78 | 36.81 | 66.15 | |
| 1.5 | 6.95 | 25.76 | 51.54 | |
| General purpose | 0.5 | 14.90 | 29.01 | 29.53 |
| 1 | 14.27 | 40.82 | 65.76 | |
| 1.5 | 9.780 | 34.56 | 64.32 | |
| High resolution | 0.5 | 14.58 | 20.78 | 19.80 |
| 1 | 17.11 | 40.29 | 54.03 | |
| 1.5 | 11.61 | 38.26 | 65.56 | |
Septal thickness of collimators was 0.2 mm.