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BaF2 substrate

BaF2 substrate

 

The main performance parameters

Crystal Structure

Cubic

Lattice Constants

6.19 Å  

Density

4.88 (g/cm3)

Melting Point

1354℃

Growth Method

Bridgeman

Mohs Hardness

3

Thermal conductivity

11.72 W/m.K at 286K

Coefficient of Thermal expansion

18.1×10-6/℃ at 273K

Refractive Index

ho 1.47443

Transmission Band

0.15-12.5μm

Cleavage Plane

<111>

BaF2 application

IR and UV window, prism and substrate

Packing

class-100 clean bag, in class-1000 clean room

 

Standard Specification
Product Name Orientation Standard Size Thickness Polishing  
BaF2 single crystal substrate <100> ±0.5°
<110> ±0.5°
<111> ±0.5°
Or other off-angle
10x10mm
10x5mm
5x5mm
20x20mm
φ25.4 x 0.5mm
φ40 x 0.5mm
φ40 x 1.0mm
Or others
0.2mm
0.5mm
1.0mm
2.0mm
Or others
Fine ground
Single side polished
Double side polished

Roughness: Ra<10A(1.0nm)
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Barium fluoride (BaF2) crystal belongs to cubic crystal system, good moisture resistance, melting point 1280 °C, high using temperature, the refractive index does not change much in a wide wavelength range and with a wide of light transmission range. The highest transmittance can reach  >90% in the wavelength range of 0.2μm to 10μm. BaF2 crystal has good optical and mechanical properties.

 

In addition, BaF2 crystals also have excellent scintillation properties (due to their fast and slow 2 luminescence components, the crystal can simultaneously measure energy spectrum and time spectrum, Moreover, the energy resolution and time resolution are relatively high. ), so the BaF2 has broad application prospects in the fields of high energy physics, nuclear physics and nuclear medicine.

 
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