Lead Fluoride - PbF₂ is a highly effective gamma-ray absorber as a result of its high density, fast decay time, and a high radiation hardness. These scintillator crystals are useful in diverse applications such as Positron Emission Tomography (PET) and specialty applications in high energy, nuclear, space and medical physics. PbF₂ crystal substrates are available for purchase. Customized PbF₂ crystals can be supplied by MSE Supplies based on customer's requirements.

Main Parameters of PbF₂ single crystal substrates
Material	Lead Fluoride, PbF₂
CAS Number	7783-46-2
Crystal structure	Cubic, Fm-3m (m-3m)
Unit cell constant	a = 4.241 A
Melt point (ºC)	824
Density (g/cm³)	7.75
Molar Mass (g/mole)	245.21
Thermal expansion (x 10^-6 K^-1 )	29 @ 283K
Solubility	0.064 g/100g water at 20°C
Refractive Index @ 5 µm	1.7808
Dielectric Constant @ 1MHz	13
Sizes	5x5 mm, 10x10 mm crystal substrates
Sizes	Customized sizes are available
Thickness	0.5 mm or customized
Surface polishing	Single or double side polished (epi-ready CMP for crystal substrates or optically polished for bulk crystals)
Crystal orientation	(100), (110), (111), +/- 0.5 degree
Surface roughness, Ra:	< 0.5 nm (5 um x 5 um area)
Package	sealed in class 100 clean bags packed in class 1000 clean room

References:

Y. Yang, W.Bi, X. Li, M. Liao, W. Gao, Y. Ohishi, Y. Fang, and Y. Li. Ultrabroadband supercontinuum generation through filamentation in a lead fluoride crystal. Journal of OSA B. Vol.36(2), Pgs. A1-7, 2019.
Spilker, P.L. Cole, P. Bertin, T.A. Forest, M. Mestari, S. Naeem, J. Roche, C. Munoz, and N. LeBaron. Optical Restoration of Lead Fluoride Crystals

AIP Conference Proceedings 1099, 997 (2009); https://doi.org/10.1063/1.3120211

Mao, L. Zhang and R. Zhu, "A Search for Scintillation in Doped Cubic Lead Fluoride Crystals," in IEEE Transactions on Nuclear Science, vol. 57, no. 6, pp. 3841-3845, Dec. 2010, doi: 10.1109/TNS.2010.2076372.