CsI(Tl) Scintillation Crystal
Thallium-doped Cesium Iodide (CsI:Tl) delivers an exceptional combination of high Gamma-ray stopping power, superior energy resolution, and robust light output. Uniquely characterized by its lack of a cleavage plane, this highly processable material can be precision-machined into complex custom geometries, standalone crystals, and advanced CsI(Tl) scintillation screens.To meet the rigorous demands of fast-scanning radiation imaging, ATR Crystal engineers specialized low-afterglow CsI(Tl) crystals. Achieving a remarkable afterglow of just 0.05~0.39% @ 20ms, this breakthrough significantly eliminates image trailing and enhances overall resolution without sacrificing total light output.Emitting seamlessly in the long-wavelength spectrum (>500nm) for optimal photodiode (PD) readout, our custom linear and 2-D CsI(Tl) arrays are the industry standard for high-speed luggage and container security inspection, industrial level gauges, and high-energy physics.
Product Category:
Scintillation Crystal
Applications of CsI(Tl) Scintillators (CsI:Tl Scintillators)
- Security inspection
- Industrial level gauge
- High energy physics
- Nuclear imaging
Advantages of CsI(Tl) Scintillators (CsI:Tl Scintillators)
- High density
- High Gamma-ray stopping power
- Good energy resolution
- High light output
- Emission wavelength at 550 nm
- Compatible with photodiode readout
The Ability of ATR Crystal
- Maximum Size: ɸ120mm x 400mm
- Available items: monolithic crystal, scintillation screen, linear or 2-D array
| Different Types of CsI(Tl) Scintillators (CsI:Tl Scintillators) | |||
| Type | Relative Light Output of NaI(Tl) | Decay time | Afterglow |
| Low afterglow type | 40% | 1000 ns | 0.05~0.39%@20ms |
| Standard type | 45% | 1000 ns | 0.5~5%@6ms |
| Properties of CsI(Tl) Scintillators (CsI:Tl Scintillators) | |
| Relative Light Output of NaI(Tl) (%) | 40 low afterglow; 45 standard |
| Scintillation Decay Time (ns) | 1000 |
| Emission Peak Wavelength (nm) | 550 |
| Refractive Index (peak wavelength) | 1.8 |
| Density（g/cm3） | 4.51 |
| Hygroscopic | Slight |
| Mohs hardness | 2 |
| Afterglow | 0.05~0.39%@20ms low afterglow; 0.5~5%@6ms standard |
| Light yield (photons/keV) | 48 low afterglow; 54 standard |
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