Table 1.
Comparison of the properties of the different block detectors from Siemens Medical Solutions USA, Inc. Molecular Imaging Division, whose sketch is depicted in Figure 6.
| Detector name | LSO2 | BGO1 |
|---|---|---|
| Active volume (mm3) | 52.7 × 52.7 × 20.0 | 52.7 × 52.7 × 20.0 |
| Granularity | Independent pixels | Segmented crystal |
| Pixel matrix | 13 × 13 | 8 × 8 |
| Pixel dimensions (mm3) | 4.0 × 4.0 × 20.0 | 6.4 × 6.4 × 20.0 |
| Light guide | Coupled to block | Cut into block |
| Operating voltage | +900 V | +1350 V |
| Commercial scanner | Biograph PET/CT | ECAT EXACT 47 PET |
Spatial dimensions are given as height × width × depth. Reproduced with permission from Ref. (53).