Ce YAG Scintillation Detector

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Product Details

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Description

Cerium doped yttrium-aluminum garnet (Ce:YAG) is a well established scintillator and has many attractive properties, such as fast decay (60~70ns), high light yield, emission peaks at 520-550nm that well matched with the sensitivity of commercial Si-CCD detectors as well as good mechanical and chemical stability. The Ce:YAG is also a very appropriate crystal for imaging screens, LED lighting and laser lighting.

 

Features

  • Virtually no afterglow emissions

  • Emission peaking at 550nm is well matched with CCD detectors

  • Reasonably fast with a decay time of 70ns

  • YAG(Ce)'s light yield increases linearly with the total energy of the electron beam, whereas the response of phosphors dramatically decreases.


Applications

  • CT

  • Particle accelerator

  • PET

  • SPECT

  • LED lighting

  • Laser lighting


Properties

Physical and Chemical Properties

Property

Ce:YAG

Chemical composition

Y3Al5O12

Melting (℃)

1970℃

Symmetry

Cubic

Structure

Ia3d

Cell parameters(Å)

12.01

Hardness

8.5

Density(g/cm3)

4.56

Thermal conductivity (Wm-1K-1)

1.13

expanding coefficient (10-6/℃)

7.7

Refractive index (λ=550nm)

1.82

 

Scintillation properties:

Emission peak (nm)

533

Light yield (Photons•Mev-1)

15000

Decay time (ns)

60-70

Relative light output (%NaI:Tl)

20

Absorption length (cm)

2.61

Radiation Length (cm)

3.5

Energy resolution

<8%

Zeff

35

Afterglow (% after 6ms)

<0.005

 

Transmittance spectra of Ce:YAG

image001.png

Luminescence spectra of Ce:YAG

Ce YAG.jpg8Q@BC3BDIBXAH3C5D(G086U.png

Decay time curves of Ce:YAG

image005.jpg


Polishing specifications  

Polishing Specification for Laser Grade

Orientation Tolerence

<0.5°

Thickness/Diameter Tolerance

±0.05 mm

Parallel

10〞

Perpendicular

surface Quality

10/5

Clear Aperture

>90%

Chamfer

<0.2×45°

Maximum dimensions

dia 100 mm


Standard product


End congifuration, mm

Thickness, mm

Tolerance, mm

3×3

0.5

+/-0.02

5×5

10×5

10×10

25×25

40×40

0.25

60×80

2

dia 8

1

dia 10

dia 25

0.1

dia 40

0.4

dia 40

1

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