CdWO4
Cadmium tungstate (CdWO4 or CWO) is a monoclinic crystal with a wolframite structure and has good comprehensive scintillation properties. The peak scintillation wavelength of CdWO4 crystal is 480 nm (with emission range between 380-660 nm), and the efficiency is 13000 photons/MeV, when it is hit by gamma rays and x-rays. Because of high luminous efficiency, short afterglow time, large X-ray absorption coefficient, strong resistance to radiation damage, and high material density, CdWO4 crystal is widely used in nuclear inspection, γ camera, X-CT, High energy physics, and container inspection, etc. The combined application of CdWO4 crystal and B4C can form a compact gamma-ray and neutron radiation detector. At the same time, CdWO4 crystals can be used to detect rare nuclear processes, such as double β decay, other rare α, and β decay.
CasCrysTech(CCT)provides high quality Cadmium Tungstate (CdWO4) crystal to the clients.
Uses/Applications
CdWO4 crystal is widely used in nuclear inspection, γ camera, X-CT, High energy physics, and container inspection, etc. The combined application of CdWO4 crystal and B4C can form a compact gamma-ray and neutron radiation detector. At the same time, CdWO4 crystals can be used to detect rare nuclear processes, such as double β decay, other rare α, and β decay.
Features/Benefits
High luminous efficiency,;
Short afterglow time;
Large X-ray absorption coefficient;
Strong resistance to radiation damage;
High material density.
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Crystal Structure
Monoclinic
Lattice Constant
a = 5.029 Å ; b = 5.859 Å ; c = 5.074 Å
α=γ= 90°, β= 91.47°
Density
7.9(g/cm3)
Melting Point
1325°C
Mohs Hardness
4- 4.5(mohs)
Thermal Expansion (10-6/K)
6.39 @<100>; 10.9 @<010>
Refractive Index
2.3 @ 633nm ( room temperature )
Dimension
10x10mm , 5x5mm
Thickness
0.5mm , 1.0mm
Polishing
One side or two sides
Orientation
<010>,<100>
Crystal Plane Orientation Accuracy
±0.5°
Color and Appearance
Yellow to colourless depend on annealing
Package
Class 100 clean bag, Class 1000 super clean room
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Dimension
10x10mm , 5x5mm
Thickness
0.5mm , 1.0mm