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SP121 for Alpha Ray + Beta Ray Detection


  • For both Alpha Ray and Beta Ray Detection
  • Good uniformity

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SP102 ZnS(Ag)
Substrate Materials Polystyrene ZnS(Ag)
Density(g/cm3 1.023 4.1
Refractive Index 1.58
Light Output (related to anthracene crystals) 64% 280%
Emission Peak Wavelength (nm) 423 450
Decay Time (ns) 2.4 200
Operation Temperature Range(℃) -40~55 -40~55
Thickness of Painting Layer(mg/cm2 4.5

SP121 series plastic scintillators are used to both α-ray and β-ray detection. A ZnS(Ag) layer are painted on the surface of plastic scintillator SP102 (Generally, the thickness of ZnS(Ag) layer is 4.5mg/cm2 ). SP102 is for β-ray detection, and ZnS(Ag) layer is for α-ray detection, and the designed thickness of ZnS(Ag) layer are selected to absorb α-ray just exactly. An advanced and sophisticated processing are used to make the ZnS(Ag) painting, the final products has an excellent homogeneity and uniformity.