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Barium fluoride shows good optical transmission over wide spectrum range, which can be used as UV-IR windows in 0.15μm~12.5μm. It also presents excellent scintillation properties, which is widely used in high energy physics, nuclear physics and nuclear medical instruments, and etc.
Main Properties and Performance | |
Transmission range (μm) | 0.15~12.5 |
Transmittance | ＞90% （0.35~9μm，3mm） |
Refractivity(2.58μm) | 1.4626 |
Reflection Loss at 2.58μm | 6.8%(both faces) |
Radiation length(cm) | 2.06 |
Emission peak (nm) | 310(slow);220(fast) |
Decay constant(ns) | 620(slow);0.6(fast) |
Light output[NaI(TI)=100%] | 20%(slow);4%(fast) |
Knoop hardness (kg/mm2) | 82 with 500g indenter |
Solubility at 23℃(g/100gH2O) | 0.17 |
Cleavage plane | -111 |
Density (g/cm3) | 4.89 |
Melting Point (℃) | 1280 |
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