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- Product name:
GAGG(ce) scintillator
Growth technique: Czochralski
Dimension(max): ∅ 60 mm x 200 mm
Achieved items: Monolithic crystals and Arrays
| GAGG-F | GAGG-T | GAGG-HL | GAGG-HR | |
| Density(g/cm3) | 6.6 | 6.6 | 6.6 | 6.6 |
| Hardness(Moh) | 8 | 8 | 8 | 8 |
| Refractive index | 1.91 | 1.91 | 1.91 | 1.91 |
Light output (Photons/Mev) | 30,000 | 42,000 | 54,000 | 50,000 |
Energy resolution (5x5x5 mm cubic, 662KeV) | 7% | 6% | 5% | 4.2% |
| Decay time(ns) | 50 | 90 | 150 | 150 |
Emission wavelength max(nm) | 520 | 530 | 530 | 530 |
Radiation resistance (rad) | 107 | 107 | 107 | 107 |
| Hygroscopic | No | No | No | No |
| Self-radiation | No | No | No | No |
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 540 nm makes the material well suited to be readout by Silicon Photo-multiplier detectors.
Epic crystal developed 4 kinds of GAGG(Ce) crystal, with faster decay time(GAGG-F), typical(GAGG-T), higher light output(GAGG-HL) and higher energy resolution(GAGG-HR) crystal, for the customer in different field.
GAGG(ce) is a very promising scintillator in high energy industrial field, when it was characterized on life test under 115kv, 3mA and the radiation source located at a 150 mm distance from crystal, after 20 hours the performance is nearly the same as the fresh one. It means it has a good prospect to withstand high dose under X-ray irradiation, of course it depends on irradiation conditions and in case of going further with GAGG for NDT further exact test need to be conducted.
Beside the single Ce: GAGG crystal, we are able to fabricate it into linear and 2 dimensional array, the pixel size and separator could be achieved based on requirement. We also have developed the technology for the ceramic Ce:GAGG, it has better coincidence resolving time(CRT), faster decay time and higher light output.
