CaF2:Eu – Europium Doped Calcium Fluoride
In addition to its use as an UV-Vis-IR optical material, Calcium Fluoride’s properties make it ideal for scintillation when doped with Europium.
CaF2:Eu is an attractive scintillation material due to its inert, non-hygroscopic and shock resistant nature. Popular applications are gamma-ray detection, health physics systems and applications where mechanical shock to the scintillation material may be an issue.
|Melting point [K]||1691|
|Thermal expansion coefficient [K-¹]||19.5 x 10-⁶|
|Wavelength of emission maximum [nm]||435|
|Lower wavelength cutoff [nm]||395|
|Refractive index at emission maximum||1.47|
|Primary decay time [µs]||940|
|Light yield [photons/keV γ]||19|
|Photoelectron yield [% of NaI(Tl)] (y rays)||50|