BaF2 | Infrared Crystal

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BaF2 infrared crystal — UV-IR windows 190-1200 nm, radiation-hard scintillator for physics and medicine.

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Description

BaF2 Infrared Crystal has long served as a UV-IR window material. Its broad transmission spectrum runs 190 to 1200 nm. High transmittance, slight hygroscopicity, and a refractive index nearly independent of temperature define it. The material is barium fluoride.

BaF2 Infrared Crystal as a window

The 190-1200 nm window covers UV through near-IR in one material. Little temperature dependence of the refractive index keeps focus stable. Slight hygroscopicity means normal dry handling suffices. UV laser systems choose it for window durability. The low dn/dT keeps calibration valid across seasons. The broad spectrum suits multi-wavelength instruments.

BaF2 Infrared Crystal as a scintillator

BaF2 is also a scintillation material. Fast time resolution and energy measurement come together: it measures energy spectrum and time spectrum simultaneously. Excellent radiation hardness reaches 10^6 rad or more. Simultaneous energy and timing measurement simplifies detector design. Coincidence timing experiments exploit the fast component. The fast timing supports coincidence and TOF techniques.

Typical applications

High energy physics. Nuclear physics. Nuclear medicine. Beam monitoring in accelerators uses its radiation hardness. Nuclear medicine detectors benefit from the dual measurement. Physics labs value the radiation hardness for long campaigns. For a non-hygroscopic fluoride window, see our CaF2 Infrared Crystal.

Request a quote for BaF2 Infrared Crystal with your dimensions and polish requirements. Tell us the wavelength range for AR coating selection. Specify grade and surface quality for scintillator use.

Technical Specifications

Crystalsystem

Hexagonal Crystal

Density

4.89g/cm3

Radiation length

2.03cm

Melting Point

1280°C

Hardness

3Mho

Decay Constant

0.6~620ns

Peak Emission

220~310nm

Light Yield

10400 Photons/MeV

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