Table 1.
Optimal hole dimensions—hole length, hole diameter, and septal thickness—for varying input parameters using general collimator equations without constraints. Septal penetration was approximately 0.05 for all collimators.
| Input parameters | Optimized hole dimensions | S [×103 (cpm∕μCi)] | |||||
|---|---|---|---|---|---|---|---|
| Desired Rc (mm) | b (cm) | μ (cm−1) | l (cm) | d (mm) | t (mm) | bmin (mm) | |
| 5.0 | 3 | 26.32 | 0.946 | 1.12 | 0.31 | 7.35 | 1.82 |
| 5.0 | 3 | 34.48 | 0.813 | 1.01 | 0.24 | 6.00 | 2.04 |
| 5.0 | 6 | 26.32 | 1.29 | 0.840 | 0.16 | 8.91 | 0.595 |
| 5.0 | 6 | 34.48 | 1.11 | 0.747 | 0.13 | 7.48 | 0.649 |
| 7.5 | 3 | 26.32 | 0.946 | 1.69 | 0.46 | 7.30 | 4.09 |
| 7.5 | 3 | 34.48 | 0.813 | 1.51 | 0.36 | 6.00 | 4.59 |
| 7.5 | 6 | 26.32 | 1.29 | 1.26 | 0.24 | 8.91 | 1.34 |
| 7.5 | 6 | 34.48 | 1.11 | 1.12 | 0.19 | 7.43 | 1.46 |