Sensitivity (cpm/MBq) for Collimators with Different Hole Diameters, Septal Thicknesses, and Septal Lengths
| Septal thickness (mm) | ||||||
| Type of collimator | Hole diameter (mm) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 |
| High sensitivity | 0.5 | 4,422 | 2,670 | 1,744 | 1,303 | 1,000 |
| 1 | 35,200 | 16,510 | 12,560 | 9,870 | 8,017 | |
| 1.5 | 41,670 | 41,150 | 37,740 | 30,830 | 25,050 | |
| General purpose | 0.5 | 2,000 | 1,205 | 847 | 659 | 450 |
| 1 | 11,350 | 7,590 | 5,940 | 4,677 | 3,839 | |
| 1.5 | 38,880 | 20,970 | 16,860 | 14,130 | 12,040 | |
| High resolution | 0.5 | 1,060 | 683 | 468 | 347 | 273 |
| 1 | 5,250 | 3,804 | 2,935 | 2,330 | 2,031 | |
| 1.5 | 14,000 | 10,230 | 8,359 | 7,064 | 6,027 | |
Crystal pixel size was 4 mm2.