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CWO
Properties and Data
Physical Properties
Composition
CdWO
4
Chemical Name
Cadmium Tungstate
Molecular Weight
360.251 g/mol
Density
7.9 - 8 g/cm
3
Mohs Hardness
4 - 4.5
Melting Point
1325 °C (2417 °F - 1598 °K)
Crystal System
Tetragonal
Optical Properties
Type
Uniaxial (+)
Refractive Index
n = 2.2 - 2.3
Dispersion Factor
?
Birefringence
?
Additional Properties
Scintillescent
Peak: 470/540nm (Teal)
Yield: 25-40% of Tl:NaI
Additional Information
This material is awaiting an article to be written...
Variants and Types
Intrinsic
Intrinsic
Color: Beige to Dark Orange
Used for Specialty Scintillators, Sensors
Production and Synthesis
Czochralski Method
Czochralski Method
Involves pulling a crystal (boule) upward from a molten solution. Produces some of the purest crystals but requires a cleanroom environment.
Hydrothermal Method
Hydrothermal Method
Involves suspending a seed crystal into a high pressure / high temperature autoclave with liquid ingredients. Sometimes produces optics-grade ingots.
References
REFERENCES
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