Premium CdWO4 Scintillators: Zero Background & Low Afterglow for CT
Cadmium Tungstate (CdWO4) is a premium, high-density scintillator distinguished by its high atomic number, exceptional radiation resistance, and strictly zero radioactive background. Delivering a stable light output of 12-15 photons/keV with a peak emission at 475nm, it achieves 30-50% of the light yield of NaI(Tl) while maintaining ultra-reliable, interference-free performance.
The critical combination of robust light output and exceptionally low afterglow makes CdWO4 the ultimate material for seamless coupling with silicon photodiodes (PDs). This specific synergy is highly sought after by engineers designing next-generation medical and industrial Computed Tomography (CT) scanners, guaranteeing razor-sharp, high-resolution imaging without trailing artifacts.
ATR Crystal precision-manufactures standalone CdWO4 crystals alongside fully customized linear and 2-D CdWO4 arrays. We tailor every configuration to your exact specifications, maximizing detection efficiency for your most rigorous scanning systems.
ATR Crystal CdWO4 Scintillators(Cadmium Tungstate Scintillators)
Description
Parameter
Description
Application of CdWO4 Scintillators (Cadmium Tungstate Scintillators)
Industrial computed tomography (CT) scanners
Medical computed tomography (CT) scanners
Security inspection
High energy physics
Advantages of CdWO4 Scintillators (Cadmium Tungstate Scintillators)
Low afterglow
Relatively high light yield
Strong radiation resistance
High density
high atomic number
No radioactive background
The Ability of ATR Crystal CdWO4 Scintillators(Cadmium Tungstate Scintillators)
Maximum Size: ɸ80mm x 200mm
Available items: monolithic crystal, linear or 2-D array
Parameter
Properties of CdWO4 Scintillators (Cadmium Tungstate Scintillators)
| Relative Light Output of NaI(Tl) | 30%~50% |
|---|---|
| Scintillation Decay Time (ns) | 14000 |
| Emission Peak Wavelength (nm) | 475 |
| Refractive Index (peak wavelength) | 2.3 |
| Density（g/cm3） | 7.9 |
| Hygroscopic | No |
| Mohs hardness | 4.5 |
| Afterglow | ＜0.01%@20ms |
| Cleavage plane | |
| Radiation length (cm) | 1 |
| Light yield (photons/keV) | 12~15 |