CEBR3 - Cerium Bromide Scintillator Crystal
Cerium Bromide (CeBr3) scintillator crystals are now available on a commercial basis and have proven to be very capable detectors in X-ray and gamma-ray spectroscopy applications. CeBr3 crystals are hygroscopic but can be supplied both with and without encapsulation.
Cerium Bromide - CeBr3- scintillator crystals have a:
- Short decay time - 19ns
- High light yield - 60,000 Photons/MeV
- Excellent energy resolution - 3.8keV @ 662 keV
- Inherent low background radiation - 0.004 Bq/cm³
Cerium Bromide - CeBr3 - issues to be aware of:
- Hygroscopic with encapsulation needed
Cerium Bromide - CeBr3 - is a useful scintillator proven for applications such as:
- Positron Emission Tomography (PET)
- Computed Tomography (CT)
- Geophysics - Measurement While Drilling (MWD)
- Security - Cargo and luggage scanning
- Specialist applications in nuclear and high energy physics
CeBr3 Scintillation Crystals - Optical Properties
| Property | Units | Value |
|---|---|---|
| Wavelength (Max. Emission) | nm | 380 |
| Wavelength Emission Range | nm | 325 - 475 |
| Decay Times | ns | 19 |
| Light Yield | photons/keV | 60 |
| Photoelectron Yield | % of NaI(Tl) | 122 |
| Energy Resolution @662 keV | keV | 3.8 |
| Radiation Length | cm | 1.96 |
| Background Radioactivity | Bq/cm³ | 0.004 |
| Optical Transmission | µm | TBA |
| Transmittance | % | TBA |
| Refractive Index | % | 2.09 @ 380nm |
| Reflection Loss/Surface | % | TBA |
CeBr3 Scintillation Crystals - Mechanical Properties
| Property | Units | Value |
|---|---|---|
| Chemical Formula | CeBr3 | |
| Density | g/cm³ | 5.1 |
| Atomic Number (Effective) | 45.9 | |
| Melting Point | ºC | 722 |
| Thermal Conductivity | Wm⁻¹K⁻¹ | 5.66 |
| Thermal Expansion Coeff. | C⁻¹ | 17.66 x 10⁻⁶ |
| Crystal Structure | Hexagonal | |
| Hardness | Mho | TBA |
| Hygroscopic | Yes | |
| Solubility | g/100gH₂0 | TBA |
Further Reading/Publications
- Cerium Bromide - Wikipedia
- Cerium Bromide - Characteristics of Scintillation Crystals (Berkeley Nucleonics)
- Scintillator Crystals Overview
- Scintillators Overview
- Contact Us for a Quote
Sizes
| Property | Value |
|---|---|
| Diameters | 76mm max |
| Lengths | 100mm max. |
Standard Sizes:
| Crystal: 25 x 25mm | Housing: 32.4 x 32mm |
| Crystal: 38 x 38mm | Housing: 45.4 x 45mm |
| Crystal: 50 x 50mm | Housing: 57.4 x 57mm |
Detector Assemblies:
Various sizes can be supplied with a matched PMT/VD/Base
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