GAGG(Ce) Scintillator (GAGG(Ce) Scintillation Crystal)
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
Nuclear Medical Imaging
High Energy Physics
Industrial & Security Inspection
Portable Radiation Detection
Features
High light yield: Emits over 30,000 photons/MeV
Emission peak at ~540 nm: Matches well with silicon photomultipliers (SiPM)
High density (~6.63 g/cm³)
Non-hygroscopic and radiation-hard
Fast decay time (~150 ns)
Production and Supply Capability
Maximum Size: ɸ60mm x 200mm
Available items: monolithic crystal, scintillation screen, pixellated array
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 |
Scintillation Screen Design Options of GAGG(Ce) Scintillators
Freestanding ultra-thin scintillation screen.
Ultra-thin scintillation screens can be coupled to a substrate with optical adhesives in order to achieve better optical readout.
Scintillation screens can be inserted into frames(Aluminum or Stainless steel) for easier manipulation.
We can provide customized marking such as a grid, cross, or scale on the surface of the screen for easier beam visualization.
We can provide various coating on the surface of the screen upon request, such as reflection coatings(Al, Au, Ag, etc.), AR coating, diffusion painting(TiO2, Al2O3), and conductive coatings(Al, ITO, C).
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 |