WT-106 consists of a thin piece of WT-102 plastic scintillator with a layer of silver activated zinc sulfide phosphor (ZnS:Ag) applied to one side. The primary use of WT-106 is the detection of alpha and beta particles in health physics instrumentation. A non-coated plastic scintillator may also be used for this purpose, but the amplitudes of the alpha and beta pulses are sufficiently similar to make it difficult to separate the two by simple counting electronics making use of counting windows. In contrast, the ZnS:Ag layer on the WT-106 is made just thick enough to stop all common alpha particles while allowing many low energy betas to pass into the plastic scintillator layer for detection. C-14 betas may be detected with moderate efficiency.
WT104 series plastic scintillators are used for the measurement of alpha rays. This kind of scintillator is sprayed with a certain thickness of ZnS (Ag) on the surface of PMMA, generally the thickness is 4.5mg/cm2.
The thickness of PMMA is generally 0.1-10mm, and it can be made into a very large area, for example: 1000*1000mm.
WT104 series plastic scintillator adopts advanced spraying technology to ensure its excellent uniformity and good consistency.
Features
◆ used for the measurement of alpha rays
◆ can be made into a very large area
◆ advanced spraying technology
◆ thickness of PMMA is generally 0.1-10mm
Parameter | PMMA | ZnS:Ag |
Polymer Base | PMMA | ZnS(Ag) |
Density (g/cm3) | 1.19 | 4.1 |
Refractive Index | 1.49 | - |
Light Output (% Anthracene) | - | 280 |
Decay Time (ns) | - | 200 |
Wavelength of Maximum Emission (nm) | - | 450 |
Operating temperature (℃) | -40~55 | - |
Layer thickness(mg/cm2) | 5 |
EMISSION SPECTRUM
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