GOS Ceramics Scintillator

Gd₂O₂S (GOS) ceramic is a high-performance, cadmium-free industrial scintillator with a density of 7.34 g/cm³. It features low afterglow below 0.1% at 3 ms, ~27000 ph/MeV light yield and strong X-ray stopping power. Its 510 nm emission perfectly matches silicon photodiodes, making it widely adopted in medical CT, security inspection and neutron imaging fields.

OST Photonics can customize the production of various one-dimensional and two-dimensional arrays as well as other irregular-shaped GOS ceramic scintillators.

Application

Medical X-ray CT systems‌

Airport and cargo security inspection equipment‌

Industrial non-destructive testing‌

Radiation monitoring in nuclear power plants‌

Features

High X-ray stopping power‌

‌Ultra-low afterglow performance‌

Environmentally friendly composition‌

‌Emission well-matched to silicon photodiodes‌

Production and Supply Capability

Maximum Size: ɸ80mm x 220mm

Available items: monolithic crystal, scintillation screen, linear or 2-D array

Properties

Transparency

Translucent

Scintillation Decay Time (ns)

3000

Emission Peak Wavelength (nm)

510

Density(g/cm3)

7.34

Hygroscopic

No

Atomic number

60

Afterglow

<0.1% after 3 ms

Light yield (photons/keV)

27

X-ray Excitation Spectrum