Physical Properties of Certain PET Scintillators
| Property | Nal | BGO | LSO | GSO |
|---|---|---|---|---|
| Density (g/mL) | 3.67 | 7.13 | 7.4 | 6.7 |
| Effective atomic number | 51 | 74 | 66 | 61 |
| Attenuation length (cm) | 2.88 | 1.05 | 1.16 | 1.43 |
| Decay time (ns) | 230 | 300 | 35–45 | 30–60 |
| Photons/MeV | 38,000 | 8,200 | 28,000 | 10,000 |
| Light yield (%NaI) | 100 | 15 | 75 | 25 |
| Hygroscopic | Yes | No | No | No |