Percentage of ICS Events 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 | 0.340 | 0.230 | 0.160 |
| 1 | 2.33 | 1.58 | 1.26 | |
| 1.5 | 5.49 | 4.10 | 3.15 | |
| General purpose | 0.5 | 0.170 | 0.130 | 0.066 |
| 1 | 1.010 | 0.770 | 0.590 | |
| 1.5 | 2.73 | 2.06 | 1.59 | |
| High resolution | 0.5 | 0.1000 | 0.0560 | 0.0500 |
| 1 | 0.510 | 0.340 | 0.230 | |
| 1.5 | 1.40 | 1.03 | 0.76 | |
Septal thickness of collimators was 0.2 mm.