Barium fluoride (BaF2) crystal has a fast scintillation light peaked at 195 and 220 nm with a 0.8 ns decay time. This ultrafast scintillation promises a wide application in an area where extreme fast timing is important, such as future high energy physics experiments, hard X ray imaging, and time-of-flight(TOF) positron emission tomography.
PRODUCT DETAILS
| BaF2 | BaF2-Y | Unit | |
| Density | 4.88 | 4.88 | g/cm3 |
| Decay Constant | 0.8/660 | 0.8/660 | ns |
| Fast/Slow Ratio | 1:5 | 2:1 | / |
| Wavelength of Emission Peak | 220/310 | 220/310 | nm |
| Light yield（relatively NaI:Tl） | 8/32 | 8/32 | % |
| Melting Point | 1554 | 1554 | K |
| Hardness | 3 | 3 | mohs |
| Refractive Index | 1.56 | 1.56 | / |
| Hygroscopic | slightly | slightly | / |
| Cleavage | (111) | (111) | / |
Barium fluoride (BaF2) crystal has a fast scintillation light peaked at 195 and 220 nm with a 0.8 ns decay time. This ultrafast scintillation promises a wide application in an area where extreme fast timing is important, such as future high energy physics experiments, hard X ray imaging, and time-of-flight(TOF) positron emission tomography.
However BaF2 also has a slow scintillation component peaked at 310 nm with a decay time around 660 ns, generally the fast/slow ratio is 1:5. In order to make the suppression of the slow scintillation component in BaF2 crystal, we use the Yttrium(Y) as dopant during the growth procedure and acquired the BaF2-Y, the fast/slow ratio lead to be around 2:1.
BaF2 crystals are known for their excellent radiation detection properties, high density, and high light output. The addition of yttrium ions further enhances these properties, resulting in improved performance in terms of energy resolution and detection sensitivity. Y-doped BaF2 crystals find applications in fields such as nuclear physics, high-energy physics, and medical imaging.
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