OST Photonics CdWO4 Scintillators(Cadmium Tungstate Scintillators)

CdWO4 Cadmium tungstate crystal is a high density, high atomic number scintillator with a relatively high light yield. The emission maximum is at 475nm and the total light output is 12 to 15 photons/keV. The light yield relative to NaI(Tl) on a bialkali PMT is 30 to 50%. In addition, CdWO4 Scintillator cadmium tungstate scintillator also has the advantages of strong radiation resistance and no radioactive background. The high light output and low afterglow make it ideal for use with silicon photodiodes in detectors for medical and industrial Computed Tomography (CT) scanners.

OST Photonics is able to supply CdWO4 crystals cadmium tungstate scintillator and CdWO4 linear or 2-D array upon your requests.

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 OST Photonics CdWO4 Scintillators(Cadmium Tungstate Scintillators)

Maximum Size: ɸ80mm x 200mm

Available items: monolithic crystal, linear or 2-D array

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