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 YAG(Ce) - Yttrium Aluminium Garnate (Cesium)


Yttrium Aluminium Garnate (Cesium) - YAG(Ce) Y₃Al₅O₁₂:Ce - is a highly effective gamma-ray absorber as a result  of its

high density and high Z characteristics.


YAG(Ce) scintillator crystals have:



YAG(Ce) scintillator crystals have the following issues which should be noted. They:



Yttrium Aluminium Garnate (Cesium) - YAG(Ce) - scintillator crystals are useful in diverse applications such as:







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Properties

Optical/Scintillation

Units

Value

Wavelength (Max. Emission)

nm

550

Wavelength Range

nm

500 - 700

Decay Time

ns

70

Light Yield

photons/keV

35

Photoelectron Yield

% of NaI(Tl)

35

Afterglow

%

<0.005 @ 6ms

Radiation Length

cm

3.5

Optical Transmission

µm

TBA

Transmittance

%

TBA

Refractive Index


1.82 @550nm

Reflection Loss/Surface

%

TBA

Neutron Capture Cross-section

barns

TBA

Properties

Mechanical

Units

Value

Density

g/cm³

4.55

Atomic Number (Effective)


74

Melting Point

ºK

1970

Thermal Expansion Coeff.

C⁻¹

8.5 x 10‾⁶

Crystal Structure


Cubic

Hardness

Mho

8.5

Hygroscopic


No

Solubility

g/100gH0

N/A

YAG(Ce) Scintillation Crystals - Sizes


YAG(Ce) Scintillation Crystal - Properties


Diameters:  Up to 80 mm

Lengths:      Up to 200 mm






Further Reading / Publications (Click for links)






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