Cesium Iodide (CsI) is a premier scintillation material prized for its exceptional light yield (66,000 photons/MeV) and high density (4.51 g/cm3). Available in both pure and thallium-doped (CsI:Tl) forms, our 99.99% pure CsI delivers superior energy resolution, making it indispensable in medical imaging, homeland security, and nuclear research.
Key Specifications of Caesium Iodide
| CAS No.: 7789-17-5 | EINECS No.: 232-145-2 |
| Purity: Up to 99.99% ( dopant: Tl, 0.1-1% optional) | Molecular Weight: 259.81 g/mol |
| Appearance: Transparent crystals/powder | Scintillation Decay Time: 1.1μs (pure); 0.7 μs (Tl-doped) |
| Melting Point: 621℃ | Packaging Options: 100g optical grade vials, 1kg bag, 30kg protective crates |
Applications of Cesium Iodide
- Medical Imaging: Tl-doped CsI crystals are the gold standard in flat-panel X-ray detectors for mammography and computed tomography (CT), providing sharper images with lower radiation doses.
- Security Screening: Used in airport baggage scanners and cargo inspection systems, where its fast decay time enables high-throughput screening (up to 500 bags/hours).
- Nuclear Detection: Monitors radiation in nuclear power plants and research reactors, detecting gamma rays and neutrons with high sensitivity.
- Aerospace Sensors: Integrated into satellite-borne spectrometers for planetary science, analyzing gamma-ray emissions from distant celestial bodies.
Why choose our CsI?
- Optical Grade: Crystals are grown via the Bridgman method, ensuring low defect density and uniform light tranmission.
- Custom Doping: We offer precise Tl doping (0.1-1%) to optimize light yield for specific energy ranges (e.g., 50keV-10MeV).
- Thermal Stability: Maintains performance in extreme temperatures (-40℃ to 150℃), ideal for aerospace and industrial environments.
Cross-Product Connections
- Scintillator Systems: Pair with Sodium Iodide (NaI: Tl) for comparative radiation detection studies.
- Detector Components: Our Cesium Bromide (CsBr) is a cost-effective alternative for low-energy X-ray applications.
- Research Tools: For material science R&D, combine with our Cesium Chloride (CsCl) to study halide crystal growth mechanisms.
FAQ
- Q:How does CsI:Tl compare to NaI:Tl in gamma detection?
A:CsI:Tl has beter timing resolution and is less hygroscopic, making it ideal for portable detector.
- Q:Can you supply large CsI crystal for industrial scanners?
A:Yes – we produce crystals up to 200mm×200mm, with custom cuts for specific detector designs.