YAG:Ce

YAG:Ce
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.

Key properties

Fast scintillator

Mechanical resistence

Chemical resistence

 

Technical parameters

 

 Physical 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

 

 

Luminescence properties
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

 

Luminescence properties

 

 

Emission centroid

[nm]

Maximum emission

[nm]

Max. of absorption

[nm]

Max abs. coefficient

[cm-1]

n @633nm [-]

Thermal conductivity

T= 25°C

[W.m-1 K-1]

Thermal conductivity

T= 100°C

[W.m-1 K-1]

Yellow

CIE (0.418; 0.554)

573   535  459  ~80  1.83  11.5  7.5 

Yellow

CIE (0.434; 0.543)

 
580   545   460  ~80  1.83  8.2  5.7 

Other Cryphosphor materials:

Green

CIE (0.326; 0.576)

545 

510 

450 

~60

1.84

10.3

7.2

Yellow/Orange

CIE (0.453; 0.530)

 588  555 460   ~60  1.83   7.7 5.4