Premium CsI(Tl) Scintillators & Low-Afterglow Arrays
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.
ATR Crystal CsI(Tl) Scintillators
Description
Parameter
Description
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
Parameter
Different Types of CsI(Tl) Scintillators (CsI:Tl Scintillators)
| Type | Relative Light Output of NaI(Tl) | Decay time | Afterglow |
|---|---|---|---|
| Standard type | 45% | 1000 ns | 0.5~5%@6ms |
| Low afterglow type | 40% | 1000 ns | 0.05~0.39%@20ms |
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 |