Lead tungsten is originally dedicated to high energy physics detectors. It combines high radiation hardness with good scintillation properties

Technical parameters

Physical properties 
Density 8.28 g/cm3
Hardness by Mohs 4
Index of refraction 2.17
Melting point 1123 °C
Crystal structure tetragonal symetric
Hygroscopic NO



Luminescence properties 
Wavelength of max. emission 420 nm
Decay constant 5-15 ns
Radiation length (X0) 0.89 cm
Photon yield at 18°C 15-25 phe/MeV
Molière radius (RM) 2.0 cm