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 GSO / GSO(Ce) Gadolinium Orthosilicate


Gadolinium Orthosilicate - Gd₂SiO₅(Ce) is a effective all round gamma-ray absorber. It is referred to

both as GSO and GSO(Ce), it is only available with Ce doping.


GSO scintillator crystals have:



GSO scintillator crystals have the following issues which should be noted. They:



Gadolinium Orthosilicate - GSO scintillator crystals are useful in diverse applications such as:







Properties

Optical/Scintillation

Units

Value

Wavelength (Max. Emission)

nm

430

Lower Wavelength Cut-off

nm

TBA

Decay Time

ns

30 - 60

Light Yield

photons/keV

8 to 10

Photoelectron Yield

% of NaI(Tl)

20

Radiation Length

cm

1.38

Optical Transmission

µm

TBA

Attenuation

cm⁻¹

0.67

Transmittance

%

TBA

Refractive Index


1.85

Reflection Loss/Surface

%

TBA

Neutron Capture X-section

barns

TBA

Radiation Hardness

Gy

>10⁶

Properties

Mechanical

Units

Value

Density

g/cm³

6.7

Atomic Number (Effective)


58

Melting Point

ºK

1900

Thermal Expansion Coeff.

C⁻¹

4 - 12 x 10‾⁶

Crystal Structure


Mono

Hardness

Mho

5.7

Hygroscopic


No

Solubility

g/100gH0

N/A

GSO Scintillation Crystals - Sizes


GSO / GSO(Ce) Scintillation Crystal - Properties


Diameters:  Up to 80mm

Lengths:      Up to 400mm






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