CRY 18

CRY 18
CRY-018 is the mixed rare-earth silicate single crystal scintillation material

Key characteristics

  • medium density
  • high light yield
  • short decay time

Technical parameters

Physical properties 
Density 4.5 g/cm3
Hardness by Mohs 5.8
Index of refraction 1.79
Melting point 1980°C
Thermal expansion -
Crystal structure monoclinic
Hygroscopic NO

 

 

Luminescence properties 
Wavelength of max. emission 425 nm
Decay constant 45 ns
Afterglow -
Radiation length for 511 keV 2.74 cm
Photon yield at 300 K (27°C) 30 x 103 Ph/MeV
Integrated light output compared to NaI:Tl 80 % NaI:Tl