GAGG(Ce) Scintillation Crystal
GAGG(Ce) (Ce:GAGG, Gd3Al2Ga3O12) is new scintillator for single photon emission computed tomography(SPECT), gamma-ray and compton electron detection. Cerium doped GAGG have many properties that make it suitable for gamma spectroscopy and medical imaging applications. A high photon yield and emission peak around 520 nm makes the material well suited to be readout by Silicon Photo-multiplier detectors.
OST Photonics can supply GAGG(Ce) scintillation crystals upon your requests. We can offer a variety of design options and different types of GAGG(Ce) crystal materials to meet the needs of customers for their applications.
Application
1 ) Gamma-ray detection
2 ) X-ray medical imaging
3 ) High energy physics
4 ) Positron Emission Tomography-Computed Tomography(PET-CT)
5 ) Single photon emission computed tomography(SPECT)
Features
1 ) High light output
2 ) High energy resolution
3 ) Fast decay time
4 ) No background
5) No hygroscopy
Types of GAGG(Ce) Scintillators
Type | Light yield | Decay time | Afterglow |
High light output type | 54000 photons/keV | <150 ns | ≤0.10%@20ms |
Low afterglow type | 45000 photons/keV | <70 ns | ≤0.02%@20ms |
Fast decay time type | 30000 photons/keV | <50 ns | ≤0.10%@20ms |
Balanced type | 42000 photons/keV | <90 ns | ≤0.10%@20ms |
Properties
Product Type | High light output type | Low afterglow type | Fast decay time type | Balanced type |
Scintillation decay time (ns) | ＜150 | ＜70 | ＜50 | ＜90 |
Emission peak wavelength (nm) | 520 | 520 | 520 | 520 |
Refractive index (peak wavelength) | 1.9 | 1.9 | 1.9 | 1.9 |
Density (g/cm3) | 6.6 | 6.6 | 6.6 | 6.6 |
Light yield (photoelectron /keV) | 54 | 45 | 30 | 42 |
Energy resolution ( 137Cs) (5x5x5 mm) | 6% | 6% | 7% | 6% |
Radiation hardness (rad) | 10^5 | 10^5 | 10^5 | 10^5 |
Crystal structure | Cube | Cube | Cube | Cube |
Cleavage plane | No | No | No | No |
Hygroscopic | No | No | No | No |
Mohs hardness | 8 | 8 | 8 | 8 |
Afterglow | ≤0.10%@20ms | ≤0.02%@20ms | ≤0.10%@20ms | ≤0.10%@20ms |