Europium-doped calcium fluoride
The unique scintillation properties make Eu:CaF2 an important material for various photon and laser applications. It is used in experiments in low-energy nuclear physics, in the detection of nuclear reactors, in radiation monitoring and in the diagnosis of radioactivity in medicine.
The most important facts about Eu:CaF2
Zeff
16.5
emission wavelenth
435
nm
light yield
30˙000
photons/MeV
All geometries are available with individual customer advice and specific solutions.
Properties of our Eu:CaF2:
- Detection of β-radiation
- Low effective atomic number
Our Eu:CaF2 crystals are excellently suited for these applications:
- Detection of β-radiation
- Applications, in low-energy nuclear physics
Properties of Eu:CaF2 at a glance
| Scintillation properties | |
|---|---|
| Emission wavelength [nm] | 435 |
| Energy resolution @662 keV [% FWHM] | 5.4 |
| Light yield [photons/MeV] | 30˙000 |
| Decay time [ns] | 950 |
| Background [Bq/cm3] | – |
| Zeff | 16.5 |
| Optical, mechanical, thermal properties | |
|---|---|
| Refractive index @ emission wavelength | 1.44 |
| Density [g/cm³] | 3.18 |
| Thermal conductivity [W m-1 K-1] | 9.7 |
| Linear expansion coefficient [10-6 K-1] | 19.5 |
| Crystal structure | cubic |
| Hygroscopic | no |
| Forms of delivery | |
|---|---|
| Diameter max. [mm] | 100 |
| Thickness max. [mm] | 150 |
| Surface quality | fine ground / polished |
Your advantages with scintillators from Hellma Materials:
- High-quality crystals
- Fast lead time
- Customised made-to-measure products
- Individual series and prototype production
