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Plastic Scintillators SP121 (Equal to EJ444) for Alpha Ray & Beta Ray Detection

  • Equivalent to Eljen's EJ444
  • Fit for both Alpha Ray and Beta Ray Detection
  • Polystyrene Based and surface coated with ZnS(Ag) layer on SP102
  • Good uniformity and excellent homogeneity
  • Various shapes available
  • ZnS(Ag) layers with a standard thickness of 4.5mg/cm2 and other designed thicknesses optional
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Specifications:

Composition SP102 ZnS(Ag)
Materials Polystyrene ZnS(Ag)
Density(g/cm3 1.023 4.1
Refractive Index 1.58
Light Yield (% of 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 Coated Layer(mg/cm2 4.5

Hangzhou Shalom EO has developed the SP121 (Equal to EJ444) series plastic scintillators, which are suitable for both α-ray and β-ray detection.  The plastic scintillator SP121 consists of a ZnS(Ag) layer coated on the surface of our plastic scintillator SP102 with the ZnS(Ag) layer thickness typically being 4.5mg/cm2. The plastic scintillator SP102 is for β-ray detection with a peak emission wavelength of 423nm, and the ZnS(Ag) layer is for α-ray detection with peak emission at 450nm. The thickness of the ZnS(Ag) layer is meticulously designed to obtain exactly the desired α-ray absorption. Advanced and sophisticated processing is used to realize ZnS(Ag) coating, which makes the final scintillators have excellent homogeneity and uniformity. 

Curves

1)Light Emission Spectrum

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Plastic Scintillators SP102 for Beta Ray Detection

Plastic Scintillators SP102 for Beta Ray Detection

  • High detection efficiency for Beta-Ray detection
  • Polystyrene Based ,Excellent uniformity and no deformation
  • Short Decay Time of 2.4ns
  • Thickness range of 0.25-1.0mm and various shapes available
  • Different doping composition from SP101
  • Equal to Eljen's EJ212 and Luxium's BC400
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Plastic Scintillators SP122 for Low Energy Gamma Ray Detection

Plastic Scintillators SP122 for Low Energy Gamma Ray Detection

  • Fit for low energy γ-ray detection(γ-ray as low as 40KeV)
  • Polystyrene SP101 Based and surface coated with ZnS(Ag) layer on SP101
  • Good uniformity and excellent homogeneity
  • Various shapes and sizes available
  • ZnS(Ag) coatings with a standard thickness of 8-10mg/cm2 and custom thicknesses optional
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Plastic scintillators SP123 (Equal to EJ442) for Alpha Ray Detection

Plastic scintillators SP123 (Equal to EJ442) for Alpha Ray Detection

  • Equivalent to Eljen's EJ442
  • Fit for α-ray detection
  • Based on PMMA substrates and surfaces deposited with ZnS(Ag) coatings
  • excellent homogeneity and uniformity
  • Various shapes and large dimensions up to 1000mm x 1000mm available
  • ZnS(Ag) layers with a standard thickness of 4.5mg/cm2 and other designed thicknesses optional
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