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  • GOS (Gd2O2S:Pr) Scintillation Arrays
  • GOS (Gd2O2S:Pr) Scintillation Arrays

GOS (Gd2O2S:Pr) Scintillation Arrays

  • Relatively High Light Output and High Density,Good Machinability
  • Low Afterglow less than 0.1% at 3 ms and Excellent Moisture Resistance, goodchemical 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
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Basic Properties:

Density(g/cm3) 7.34 Atomic Coefficient 60
Peak Wavelength (nm) 510 Light Output (ph/Mev) 27000
Decay Time (μs) 3 Afterglow <0.1% at 3 ms
Hydroscopic None

Gadolinium oxysulfide or GOS (Gd2O2S:Pr) is a kind of ceramic with hexagonal system structure, it has a good chemical stability and machinability and is harmless to environment. GOS doped with rare earth ion has relatively high light output and extremely low afterglow, which is less than 0.1% at 3 ms. GOS scintilaltor ceramic has an emission peak spectral range at 470 ~ 900 nm, which is well matched with the spectral sensitivity of silicon photodiodes (Si PD).

Hangzhou Shalom EO offers the GOS scintillator arrays, with one dimension or linear or two dimensional design. Our GOS scintillation arrays are widely used in Computerized Tomography (CT) Scanners, security devices and non-destructive testing systems. 

X-ray excited luminescence spectrum of GOS ceramic of Hangzhou Shalom EO



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