Ce YAP Scintillation Detector

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Product Details

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Ce:YAP

Description

Yttrium aluminum perovskite activated by cerium is a fast(28 ns decay time), mechanically and chemically resistant scintillation material. These scintillators have very low energy secondary X-ray emission, which is of advantage in imaging applications. YAP:Ce detectors are used for gamma and X-ray counting, electron microscopy, electron and X-ray imaging screens. The materials scintillation and mechanical properties enable their use in tomography systems.

 

Features

  • Fine physical and chemical characteristics

  • Suitable for ultra-thin screen applications

  • Suitable for tomography systems

  • Fast decay time: 28 ns

  • High light output


Applications

  • CT

  • PET

  • Particle accelerator

  • SPECT


Properties

Physical and Chemical Properties

Property

Ce:YAP

Chemical composition

YAlO3

Melting (℃)

1875℃

Crystal structure

 Rhombic

Structure

Pnma

Cell parameters(Å)

  (a)5.329
  (b)7.371
  (c)5.180

Hardness

8.6

Density(g/cm3)

 5.37

Thermal conductivity(W/℃cm,25℃)

 0.11

expanding coefficient(10-6/℃)

 (a)4.2
  (b)11.7
 (c)5.1

Refractive index(λ=1.079μm)

    (na)1.931
    (nb)1.923
    (nc)1.909


Scintillation properties:

Emission peak (nm)

360

Light yield (Photons•Mev-1)

25000

Relative light output (%NaI:Tl)

40

Decay time (ns)

25-38

Energy resolution

<5%

Zeff

40

Afterglow (% after 6ms)

<0.005

 

Transmittance spectra of Ce:YAP

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Luminescence spectra of Ce:YAP

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Decay time curves of Ce:YAP

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XEL spectra of Ce:YAP

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4. Polishing Specifications

Polishing Specification for Laser Grade

Orientation Tolerence

<0.5°

Thickness/Diameter Tolerance

±0.05 mm

Parallel

10’’

Perpendicular

5’

surface Quality

10/5

Clear Aperture

>90%

Chamfer

<0.2×45°

Maximum dimensions

Dia55mm


5 Standard product


Dimensions, mm

Decay time, ns

Light yeild, photons/Mev

Refractive Index

5×5×0.5

< 40

25000

1.91 - 1.93

5×5×1

10×5×0.5

10×5×1

10×10×0.5

10×10×1

25×25×0.5

25×25×1

dia5×0.5

dia5×1

dia10×0.5

dia10×1

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