Eu CaF2 calcium fluorid Crystals

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-Eu CaF2 Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
High Light:

cerium doped yttrium aluminum garnet


bgo bismuth germanate

Product Description


SpertrumThe fluoride materials have a wide range of potential optical applications because of their high transparency arising from low-energy phonons and high ionicity. Especially, the calcium fluoride (CaF2) crystal with an optically isotropic fluorite structure has attracted much more attention due to its high transparency in a broad wavelength range, high chemical resistance, high laser damage threshold and low refractive index. The doping of europium elements into CaF2 crystal can change its physical properties, which can be used to realize the various optical integrated devices,such as UV sensor, filter, stepper lens and so on.
Eu:CaF2—A scintillation material with high optical transparency and low phonon energy
Rare earth elements are easily to form clusters in CaF2 crystals, which is beneficial for reducing the doping concentration and maintaining the energy transfer between erbium ions as well. As s one of the phosphors that has efficient excitation in the near UV range, Europium-activated calcium fluoride (Eu:CaF2) is an inert and transparent material with several characteristics that make it attractive for use as a scintillator in radiation detection systems. It has an average light yield of 24,000 photons*MeV–1 and the refractive index is similar to that of many photomultiplier tube windows and optical coupling compounds. Therefore, a high light collection efficiency can often be obtained. Additionally, the maximum wavelength of fluorescent emissions from Eu:CaF2of 435 nm matches well with photocathode photomultiplier tubes. What’s more, Eu:CaF2 can be used in relatively harsh environmental conditions because of its non-hygroscopic nurture and fracture resistance.

Material features

Chemical formula

Eu: CaF2

Density (g/cm3)


Melting point (℃)


Hardness (Mho)






Solubility (g/100gH2O)


Thermal conductivity (W/mK)


Thermal expansion coeff (C-1)


Scintillator properties

Wavelength(Max. emission) (nm) 435
Wavelength range (nm) 395~525
Decay time (ns) 950
Light yield (photons/keV) 30
Light output relative to Nal(Tl) (%) 50
Refractive index 1.47@435nm
Radiation length (cm) 3.05
Optical transmission (um) 0.13-10
Transmittance (%) TBA
Reflection loss/surface (%) 5.4
Energy resolution (%) <8
Neutron capture cross-section (barns) TBA
Afterglow (%) <0.3


Er-CaF2 Emission spectraEr-CaF2 Refractive indexEr-CaF2 total attenuation

High transparency
High chemical resistance
High laser damage threshold
Low refractive index
Non-hygroscopic nurture
Excellent fracture resistance
Low effective atomic number
Low density
Low phonon energy

Biomedical imaging
UV sensor
Stepper lens
Pressure marker
Detection of low energy photons and charged particles
2.8 µm lasers
Medical treatments

Contact Details

Phone Number : +8618699681379