Cerium Bromide
Developed and patented 20 years ago by RMD Inc., it has been successfully cultivated by Hellma for 13 years. Over the years, Hellma has proven to be the market leader and has developed CeBr3 growth processes up to a diameter of 102 mm (4 inches). Our quality standard ensures reliable scintillation properties at the highest level. Our customers rely on our proven quality.
The most important facts about CeBr3
Decay time
19
ns
Energy resolution @662 keV
3.8
%
𝛾-Background
≤ 0.002
Bq/cm³
Customised customer advice and specific solutions in all geometries.
Properties of our CeBr3:
- High-resolution 𝛾 detector
- No intrinsic radioactive background
- Very short decay time
- High light yield
- Very good radiation hardness
- High density and therefore stopping power
Our CeBr3 crystals are ideal for applications:
- Detection of 𝛾 radiation, even from very weak sources
- Applications that require fast signal processing
- Applications in a highly radioactive environment
Features of our CeBr3 at a glance
| Scintillation properties | |
|---|---|
| Emission wavelength [nm] | 380 |
| Energy resolution @662 keV [% FWHM] | 3.8 |
| Light yield [photons/MeV] | 60˙000 |
| Decay time [ns] | 19 |
| Background [Bq/cm3] | ≤ 0.002 |
| Zeff | 45.9 |
| Optical, mechanical, thermal properties | |
|---|---|
| Refractive index @ emission wavelength | 2.09 |
| Density [g/cm³] | 5.10 |
| Thermal conductivity [W m-1 K-1] | 0.9 |
| Linear expansion coefficient [10-6 K-1] | 26.3 |
| Crystal structure | hexagonal, anisotropic |
| Hygroscopic | Yes |
| Forms of delivery | |
|---|---|
| Diameter max. [mm] | 102 |
| Thickness max. [mm] | 153 |
| Surface quality | fine ground |
Your advantages with scintillators from Hellma Materials:
- High-quality crystals with defined crystal orientation and without grain boundaries
- Fast lead time
- Customised made-to-measure products
- Individual series and prototype production
