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Help CenterYAG (Ce) Scintillation Crystals Available in As-grown Wafers, Polished Wafers and Coated Wafers.
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Introduction：
Cerium-doped yttrium aluminum garnet crystals, abbreviated as Ce:YAG crystals, have the chemical
formula Ce:Y₃Al₅O₁₂. They are an exceptional scintillation crystal material capable of producing large-sized
crystal ingots with diameters reaching 4 inches. Currently, they are widely used in commercial applications.
Ce:YAG crystals exhibit high photoluminescence quantum yield, fast decay times (60-70 ns), excellent
high-temperature stability, consistent physical and chemical properties, and superior machinability. Their
emission peak at 520-550 nm aligns with the detection sensitivity range of commercial silicon photodiodes,
enabling applications in detecting low-to-medium energy gamma rays and alpha particles, as well as in X-ray
and electron imaging.
Ce:YAG crystals exhibit a broad absorption band and strong absorption at the 460nm wavelength.
Consequently, they effectively absorb blue light emitted by InGaN blue light chips and re-emit a broad
yellow-green light spectrum spanning 520-560nm. This superimposed emission produces white light,
enabling their use in fabricating high-brightness white light LEDs.Due to its excellent machinability and
high-temperature stability, researchers have explored micro-etching different hierarchical structures of
the crystal material for developing white light lasers.
Our company possesses years of expertise in growing YAG series crystals. We offer Ce:YAG crystal ingots
with dopant molar concentrations ranging from 0.1% to 1.5%, diameters of 3-4 inches, and lengths of 120mm.
Custom processing is available for Ce:YAG crystal products in various dimensions and specifications.
Features and Applications:
Features： |
Applications： |
|
High light output Rapid decay rate Stable physical and chemical properties Excellent processability Good high-temperature stability |
X-ray and electron imaging γ the detection of rays α particles CT PET White LED |
Physical and chemical properties：
Chemical formula |
Ce:Y3Al5O12 |
Doping concentration |
0. 1～2 at% |
Growth direction |
[100] or [111] |
Crystal structure |
Cubic crystal system |
Lattice parameters |
1.201 nm |
Density |
4.55 g/cm3 |
Melting point |
1970°C |
Refractive index @0.632 μm |
n=1.83 |
Hardness (Mohs) |
8.0 |
Transmission range |
0.28-5.3 um |
Light yield |
9000 |
Decay time( ns) |
73 |
Fluorescence spectrum
Fluorescence spectra of Ce:YAG crystal samples with different doping concentrations
Conventional products and processing specifications：
Dimensions and specifications |
(3*3)~(50*50)*0.5 mm3/D75*0.5 Or other customization options |
Parallelism |
30 arcsec |
Perpendicularity |
15 arcmin |
Surface finish |
10-5 |
Flatness |
λ/8 |
Wavefront distortion |
λ/4 |
Effective aperture |
90% |
Edge chipping |
|
Chamfering |
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