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Collimator parameters of the R4SSH and GE LEHR collimator used in simulation.
| R4SSH | GE LEHR | |
|---|---|---|
| Hole size (cm) | 0.19 | 0.15 |
| Hole length (cm) | 5.93 | 3.5 |
| Slant angle (deg) | 32.5 | ⋯ |
| Collimator thickness (cm) | 5.00 | 3.5 |
| Distance from the collimator face to the CVOV center (cm) | 14.45 | ⋯ |
| Diameter of the CVOV (cm) | 11.87 | ⋯ |
| Average collimator resolution at 14.45 cm (cm) | 0.81 | 0.77 |
| Sensitivity (×10−3) | 0.17 | 0.07 |
