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2MHz Scintillator IR Optics BaF2 Fluoride Crystal

Categories Optical Crystals
Brand Name: CRYLINK
Model Number: CRYLINK- CaB2 Fluoride Crystal
Certification: Iso9001
Place of Origin: China
MOQ: 1 Pieces
Price: negotiation
Payment Terms: T/T
Supply Ability: 10000 pieces /month
Delivery Time: 3-4 weeks
Packaging Details: Carton
Orientation: [100] or [111] < ±0.5°
Crystal System: Isometric
Transmission Range: 0.15 … 12 µm
Dielectric Constant: 7.33@f=2MHz
Specific mass: 4.886 g/cm3
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2MHz Scintillator IR Optics BaF2 Fluoride Crystal

CaB2 Fluoride Crystal
Description
Barium fluoride (BaF2) is a general-purpose optical window material that offers a wide range of transparency, from the ultraviolet to the long-wave infrared, with low reflectance loss and low dispersion. BaF2 single crystal is an intensively studied scintillator for the detection of gamma radiation due to its relatively high stopping power, radiation hardness and extremely fast response. BaF2 possesses the fast cross-luminescence component at 195 and 220 nm with a lifetime of several hundred picoseconds. However, this component coexists with slow one at 310 nm related to the self-trapped exciton (STE). BaF2 is a broad band gap crystal with Eg=10:9 eV. It is currently regarded as the fastest inorganic scintillator which has cross-luminescence bands peaked at 195 and 220 nm and a broad band peaking at about 300 nm due to self-trapped excitons. Much attention has been focused on the luminescent properties of rare earth ions activated BaF2.
Features
  • Excellent transmission from 150nm to 12um
  • Chemically stable
  • Low reflectance loss and low dispersion
  • High stopping power, radiation hardness and extremely fast response
  • Broad band gap
  • Susceptible to thermal shock
  • Possesses the fast cross-luminescence component at 195 and 220 nm with a lifetime of several hundred picoseconds

Applications

  • Window and focusing mirror for deep uv and excimer lasers
  • Scintillator,IR optics
  • Inorganic scintillator for subnanosecond timing

Parameter


Orientation[100] or [111] < ±0.5°
Angle Tolerance< 0.5°
Parallelism<20〞
Perpendicularity
Surface Quality10-5 (MIL-O-13830A)
Wavefront Distortion<λ/4@633 nm
Surface Flatness<λ/8 @633 nm
Clear Aperture>90%
Thickness/Diameter Tolerance±0.05 mm
Crystal SystemIsometric
HabitCubic
Space GroupFm3m(Oh5
Lattice Constants6.2001 Å
Specific mass4.886 g/cm3
Melting Point1354°C
Flexure Strength (MPa)27
TenacityBrittle
Thermal Conductivity /(W·cm-1·K-1@25°C)0.07
Specific Heat/ (J·g-1·K-1)1.003
Thermal Expansion /(10-6·K-1@25°C )13.7
Hardness (kg/mm2@Knoop)78
Young`s Modulus /GPa138.5
Fracture{111} and {100}
Transmission Range0.15 … 12 µm
Reflective Loss6 … 16%@0.2 … 10 µm
Thermo-optic coefficient(10-6·K-1@30…90°C )-18.8
Poisson Ratio0.31
Dielectric Constant7.33@f=2MHz
λ(μm)nλ(μm)nλ(μm)n
0.21.557341.455891.4144
0.51.477951.4511101.4011
11.468661.4441111.3865
21464771.4357121.3696
31.461281.425812.51.3585
151.305


Quality 2MHz Scintillator IR Optics BaF2 Fluoride Crystal for sale
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