GOS Ceramic and Arrays

GOS1D01616H0
GOS1D01625H0
GOS1D06408L0
GOS1D12804H0
All support customized drawings.

Gadolinium oxysulfide (GOS) scintillation ceramics crystallize in the hexagonal system and exhibit birefringence at grain boundaries, resulting in a translucent appearance. Depending on the activator dopants, two common scintillator variants exist: terbium-activated GOS(Tb) and praseodymium-activated GOS(Pr).
The company maintains a complete ceramic preparation and processing line, enabling customized fabrication of one-dimensional and two-dimensional arrays with various dimensions, as well as specialized shaped products.

Features:
• High light-output
• Low afterglow
• Low hardness
• Customizable
• HP / HIP method
• Non-toxic and deliquescent
• Wide emission Spectrum
• Arrays of various pixel sizes

Technical Specification

iRay GOS-LAC

iRay GOS-HLC

Chemical formula

GdOS:Pr

GdOS:Tb

Crystal system

hexagonal

hexagonal

Atomic coefficient

60

60

Density (g/cm³)

7.34

7.34

Wavelength of emission maximum (nm)

512

550

Afterglow @120 kVp

<100 ppm @ 3 ms

<500 ppm @ 20 ms

Light yieldph./MeV/y

27000

46500

Decay time (μs)

3

600

Dimensional &Accuracy

2D:+/- 0.02 mm

1D:+/- 0.05 mm

Crosstalk

<5%

<5%

Pixel-to-pixel non-uniformity

≤5%

≤5% @ 2 ~ 15 pixels

Short-term radiation damage @12 shots

2 ~ 3 %

/

Long-term radiation damage @1M rad

<10%

<15%

Typical product form

2D- array

1D- linear array

Typical applications

Medical CT

Luggage Security Screening

Industrial CT

Nondestructive Testing

This document cannot be considered to be a contractual specification.

The information given herein may be modified without notice.
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