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Eu doped Calcium Fluoride as a efficient scintillation crystal, has been widely used in the application of low energy nuclear physics experiment, nuclear reactor detecting, radiation monitor and radioactivity medical science diagnoses.
Scitlion is able to offer
Good quality Eu:CaF2 scintillation crystal
Good quality Eu:CaF2 crystal blank materials
OEM service for good quality Eu:CaF2 crystals
Eu:CaF2 Crystal Properties:
Density | 3.18 g/cm3 |
Melting Point | 1360°C |
Refractive Index | 1.47 |
Mohs Hardness | 4 |
Emission Peak | 435 nm |
Decay Constant | 940 ns |
Structure | Cubic Crystal |
Cleavage Plane | (111) |
Calcium fluoride shows good optical and thermo-mechanical properties. It is widely used as optical windows, lenses and prisms in 0.13μm~9.0μm. For its optical isotropy, low absorption and low refractive index. CaF2 has found unique advantages in high power laser and UV laser optics.
Main Properties and Performance | |
Transmission range (μm) | 0.13~9.0 |
Transmittance | >90% (0.3~7μm,3mm) |
Refractivity(5μm) | 1.39908 |
Expansion Coefficient (°C-1) | 18.85×10-6 |
Knoop hardness (kg/mm2) | 158.3(100) |
Elastic Coefficients | C11=164;C12=53;C44=33.7 |
Young’s modulus (GPa) | 75.79 |
Poisson’s ratio | 0.28 |
Solubility (g/100gH2O·20°C) | 0.0017 |
Cleavage plane | (111) |
Density(g/cm3) | 3.18 |
Melting Point(°C) | 1360 |
The Specifications of Fluoride Optical Crystals | ||||
Material | LiF | CaF2 | MgF2 | BaF2 |
Largest Size/mm | Φ 180 | Φ 300 | Φ 150 | Φ 180 |
Transmission Range/μm | 0.11-7.00 | 0.13-9.00 | 0.11-7.50 | 0.15-12.50 |
Refraction Index | 1.3943/0.5um | 1.39908/5μm | n0=1.37608 ne=1.38771(0.7um) | 1.4626(2.58um) |
Reflection Loss | 5.3%(both faces/0.5um) | 5.6%/4μm | 5.2%(both faces/0.6um) | 6.8%(both faces/0.6um) |
Expansion Ciefficeient/) | 18.85×10-6 | 13.7(Iic),8.9(⊥c) | 18.1×10-6 | |
Thermal Conductivity/Wk-1K-1 | 11.3/314K | 9.71 | 0.3/300K | 11.72/286K |
Knoop Hardness/kg·mm-2 | 99.1(100) | 158.3(100) | 415 | 82 with 500g indenter |
Elastic Coefficients | C11=97.4 C12=40.4 C44=55.4 | C11=164 C12=53 C44=33.7 | C11=104.2 C12=9.5 C44=56.8 | C11=90.4 C12=40.6 C44=25.3 |
Young Modulus/Gpa | 64.79 | 75.79 | 169.1 79.7 | 56.4 |
Solubility/g | 0.27 | 0.0017 | 0.0002 | 0.0017 |
Cleavage Plane | (100) | (111) | (111) | |
Density/g/cm³ | 2.639 | 3.18 | 3.18 | 4.89 |
Melting Point | 870 | 1360 | 1255 | 1280 |
Application | vacuum ultraviolet, ultraviolet, visible light and infrared light devices, Elements Of X Ray Diffraction, etc. | optical windows, lenses and prisms, high power laser field, ultraviolet laser optics field, etc. | optical windows, lenses and prisms, ultraviolet and infrared light optical systems, polarized optical devices, etc. | ultraviolet, infrared optical windows, high energy physics field, nuclear physics and nuclear medicine fields, etc. |
Beijing Glass Research Institute founded in 1960s, we are the state owned institute pioneered in optical materials.
Over 53 years, we have been growing accompanied by contributing to domestic and international projects in diverse areas of science and industry. Continued focus on innovation won us more than 140 awards.
Since 1966, our institute makes out the first optical fiber in China. Now we have the certification and permission on various national military or weapon projects.
From the 1st January 2013, our higher authoritiesreorganized the advantage resources and established the Scitlion Technology, all the staffs and businesses in Beijing Glass Research Institute are transferred into this new company. New company acts as the brother company of the Institute.
Now our company has 3 business units, they are Crystal, which include optic crystal and scintillation crystal growth and processing;
the special fiber, which includes various silica fiber applied in UV , visible ,infrared range and polarization maintaining optical fiber,
the optical processing, like the Windows, Mirrors, Lenses, Prisms, Filters;
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