NaI(Tl)
From Detec-Rad.com
The use of NaI(Tl) crystals in sealed units is counterbalanced by the fact that they have the greatest light output among all the scintillators and a convenient emission range matching the maximum efficiency of photomultipliers with bialkali photocatodes. Moreover, large-size NaI(Tl) crystals can be produced at low cost.
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Physical properties
| Material | NaI (Tl) (Sodium Iodide doped with Thallium) |
| Density (g/cm) | 3.67 |
| Emission Maximum (nm) | 415 |
| Decay Constant | 0.23μs |
| Index of refraction | 1.85 |
| Relative conversion efficiency | 100 |
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Remarks
- We do not grow pure NaI crystals
