GFAG(Ce) - Scintillator Crystal

GFAG(Ce) - Gadolinium Fine Aluminium Garnet is a newly developed scintillator. It is one of the brightest available scintillators with an emission peaking at 520nm. GFAG(Ce) has good stopping power, physically rugged and and well suited to a broad range of applications.

GFAG(Ce) - scintillator crystals are:

Relatively bright - emitting 45,000 photons/MeV
Good absorbers with good stopping powers - density 6.7g/cm³
Broadly emitting with a 520nm peak
Robust with good mechanically characteristics

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

Have a light emission with a is good part above 500nm, a region where photomultipliers are less sensitive

GFAG(Ce) - scintillator crystals are useful in diverse applications such as:

Medical Imaging - PET, PEM, SPECT and CT
Specialist applications in high energy, nuclear, space and medical physics

GFAG(Ce) Scintillation Crystals - Optical Properties

Property	Units	Value
Density	g/cm³	6.63
Wavelength (Max. Emission)	nm	520
Wavelength Range	nm
Decay Times	ns	88
Light Yield	photons/keV
Photoelectron Yield	% of NaI(Tl)
Radiation Length	cm
Optical Transmission	µm
Transmittance	%
Refractive Index
Reflection Loss/Surface	%
Neutron Capture Cross-section	barns

GFAG(Ce) Scintillation Crystals - Mechanical Properties

Property	Units	Value
Chemical Formula		GFAG(Ce)
Density	g/cm³	6.7
Atomic Number (Effective)		52
Melting Point	ºK	1850
Thermal Expansion Coeff.	C⁻¹
Cleavage Plane
Hardness	Mho
Hygroscopic
Solubility	g/100gH₂0

Sizes

Property	Value
Diameters	54mm max.
Lengths	100mm max.

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