GOS (Gd2O2S:Pr) Scintillator Arrays-NORTH OPTICS-Laser Components, IR optics, Scintillators, Crystals wafers|A Leading Manufacturer Of Optical Components

GOS (Gd2O2S:Pr) Scintillator Arrays

High light output and high density, very machinable

Low afterglow of less than 0.1% at 3 ms and excellent moisture Resistance, good chemical stability

Well matched with the spectral sensitivity of silicon photodiodes (Si PD)

Emission peak spectral range at 470 ~ 900 nm

Minimum pixel or crystal element size: 0.3mm x 0.3mm

Applications: Computerized Tomography (CT) Scanners, security devices and non-destructive testing systems Inquire Us

Basic Properties:

Density(g/cm³)	7.34	Atomic Coefficient	60
Molecular Formula	Gd2O2S	relative Molecular	378
Hygroscopicity	None	Refractive Index	2.2
Melting Point	2070°C	Crystal Structure	Hexagonal Crystal System
Zeff	61.1

Specifications:

Appearance Dimension Precise	<0.,03mm@42x48mm	Flatness	<0.03@42x48mm
Pixel Size Consistency	±0.01mm	Difference of Edge Reflection Thickness	<±0.05

X-ray Photoelectric Property:

Light Output	27000 ph/MeV	Peak Wavelength	512nm
Decay Time	3μs	Afterglow	<0.1%@3ms, <0.01%@100ms
Light Output Fluctuation of Difference Pixel	≦5%	Light Output Fluctuation of Difference Arrays	≦10%
Crosstalk (Cap0.085)	≦8%	Irradiation Damage of GOS Ceramic Array	20% of 1 Mrad

Gadolinium oxysulfide, or GOS (Gd2O2S: Pr), is a ceramic scintillation material with a hexagonal crystal structure. GOS crystal has good chemical stability, excellent machinability, and is harmless to the environment. GOS doped with rare earth ion features a high light output and a shallow level of afterglow (less than 0.1% at 3 ms). The emission peak of GOS scintillator ceramics ranges from 470nm to 900 nm, which matches well with the spectral sensitivity of silicon photodiodes (Si PD).

Shanghai North Optics offers GOS scintillator arrays with linear or two-dimensional designs. Our GOS scintillation arrays find widespread usage in Computerized Tomography (CT) scanners, security devices, and non-destructive testing systems. Besides, North Optics also offers GOS scintillation arrays coupled with silicon photodiodes.

1. Curve: X-ray excited luminescence spectrum of GOS ceramic from Shanghai North Optics

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