Ce:YAG

Yttrium aluminum garnet activated by cerium is a fast scintillator with excellent mechanical and chemical resistance. YAG:Ce scintillation detectors are preferred for electron microscopy, beta and X-ray counting, as well as for electron and X-ray imaging screens.

Basic Properties:

Density

4.57 g/cm3

Hardness by Mohs

8.5

Index of refraction

1.82

Melting point

1970°C

Thermal expansion

0.8-0.9 x 10-5/K

Crystal structure

cubic

Hygroscopic

NO

Wavelength of max. emission

550 nm

Decay constant

70 ns

Afterglow

<0.005 % at 6 ms

Radiation length for 511 keV

3.5 cm

Photon yield at 300 K (27°C)

30 x 103 Ph/MeV

Integrated light output compared to NaI:Tl

40 % NaI:Tl