CWO Scintillator Detector For Ore Screening NDT Application
CWO scintillator detector for ore screening NDT application
CdWO4 single crystal is a monoclinic crystal system with good comprehensive scintillation properties, and belongs to the wolverite type structure. Compared with other inorganic scintillation crystals, CdWO4 single crystal has higher luminous efficiency, shorter afterglow time, larger X-ray absorption coefficient, stronger resistance to radiation damage, higher material density and no hygroscopicity. CdWO4 crystal is the core component of nuclear instrument inspection, gamma camera, XCT tomography imager and other photoelectric inspection equipment. The wide application of CdWO4 crystal has greatly improved the working performance of medical XCT and the efficiency of safety equipment. Therefore, it has been widely used in nuclear medicine imaging, security inspection, industrial computer tomography (CT), high-energy physics and other technical fields, especially in the field of medical X-ray CT, container inspection systems have very important applications.
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: Are you a factory manufacturer?
A: Yes ,we are manufacturer with 13 years experience in the scintillator crystal industry and supplied many famous brands with good quality and service.
2.Q:Where is your main market?
A:Europe, America, Asia.
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