High Detection GAGG Scintillator Detector Container Inspection NDT
High detection GAGG scintillator detector container inspection NDT
Radiation imaging systems are widely used in biomedical and radiation environmental monitoring, which stimulates the demand of advanced the design of high-resolution detectors and radiology imaging systems. The Gadolinium Aluminum Gallium Garnet (Ce:GAGG) is a flavescent crystal with high light output of 50000 ph/MeV, short decay time of ∼50 ns and high density of 6.63 g/cm³ . The Ce:GAGG crystals appeared to be the most attractive material for its light output, decay time, energy resolution, density and absence of intrinsic radioactivity, which is promising for applying in the field of scanning electron microscopy (SEM), X-ray and γ-ray detection, medical imaging techniques, nuclear and high energy physics.
1. Different materials’ performance parameters:
| Scintillator material | CsI(Tl) | CdWO4 | GAGG:Ce | GOS:Pr/Tb Ceramic | GOS:Tb Film |
| Light yield | 54000 | 12000 | 50000 | 27000/45000 | 145% of DRZ High |
| Afterglow(after 30ms) | 0.6-0.8% | 0.1% | 0.1-0.2% | 0.01%/0.03% | 0.008% |
| Decay Time(ns) | 1000 | 14000 | 48, 90, 150 | 3000 | 3000 |
| Hygroscopic | Slightly | None | None | None | None |
| Energy range | Low energy | High energy | High energy | High energy | Low energy |
| Overall costs | Low | High | Middle | High | Low |
2．PD performance parameters
- Limit parameters:
| Index | Symbol | Value | Unit |
| Max Reverse Voltage | Vrmax | 10 | v |
| Operation temperature | Top | -10 -- +60 | °C |
| Storage temperature | Tst | -20 -- +70 | °C |
- PD photoelectric characteristics:
| Parameter | Symbol | Term | Typical value | Max | Unit |
| Spectral response ranges | λp | 350-1000 | - | nm | |
| Peak response wavelength | λ | 800 | - | nm | |
| Photosensitivity | S | λ=550 | 0.44 | - | A/W |
| λp=800 | 0.64 | ||||
| Dark current | Id | Vr=10mV | 3 - 5 | 10 | pA |
| Pixel capacitance | Ct | Vr=0,f=10kHz | 40 - 50 | 70 | pF |
3．PD Detector Drawing
(P1.6mm CsI(Tl)/ GOS:Tb Detector)
(P2.5mm GAGG/ CsI(Tl)/CdWO4 Detector)
Product shots:
FAQ:
1.Q: What's the pixel number and dimension for GAGG liner detector available?
A: Kinheng has capacity to process Pitch 0.4, 0.78, 1.575, 2.5mm for liner detector, Usually we offer Liner 1x16 elements array for PD coupling.
2.Q:Where is your main market?
A:Europe, America, Asia.
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