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Comparative characteristics of PET scintillators
| Characteristic/parameter | Bismuth germanate (BGO) | Lutetium oxyorthosilicate (LSO) | Sodium iodide NaI (Tl) |
| Crystal Density(gm/cc) | 7.13 | 7.40 | 3.67 |
| Eff. Atomic Number (Z eff.) | 74 | 66 | 51 |
| Decay Time (nano sec.) | 300 | 40 | 230 |
| Light output | 15 | 75 | 100 |
| Refractive Index | 2.15 | 1.82 | 1.85 |
