Yong Hee
PRODUCT
PbWO4
    Publish time 2022-11-10 15:14    

PbWO4

PbWO4

Introduction:

Lead tungstate (PbWO4) is a new scintillating crystal discovered in 1990's. As one of the most dense oxide crystal (8.28g/cm3), PbWO4 is distinguished by its short radiation length (0.9 cm), small 

Moliere radius (2.19 cm) and strong irradiation hardness. Its scintillation light output peaks between 450-550 nm with a fast component decay time in the range from 2-20 ns. After irradiation with 

gamma-ray, the degradation in the optical transmittance is not large up to 106 rad. It is considered as a promising scintillation material for electromagnetic spectrometer in high energy, physics 

experiment as well as medicine.


Properties:

Density (g/cm3)

8.28

Melting Point(℃)

1123

Radiation length(cm)

0.92

Decay constant(ns)

6/30

Peak emission (nm)

440/530

Light yield(%NaI:Tl)

0.5

Hardness(Mohs)

/

Refractive Index

2.16

Hygroscopicity

None

Cleavage

101