Polysiloxane Scintillators for Efficient Neutron and Gamma-Ray Pulse Shape Discrimination

Plastic scintillators based on thermoplastics, such as polystyrene and poly­(vinyl toluene) (PVT), are capable of neutron and γ radiation detection via pulse shape discrimination (PSD) when overdoped with select fluorescent molecules. This class of plastic scintillator has been extensively studied b...

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Bibliographic Details
Published in:ACS applied polymer materials 2020-08, Vol.2 (8), p.3657-3662
Main Authors: Lim, Allison, Arrue, Jonathan, Rose, Paul B, Sellinger, Alan, Erickson, Anna S
Format: Article
Language:English
Subjects:
aromatic compounds
discrimination
hydrocarbons
impurities
MATERIALS SCIENCE
neutron detection
Plastic scintillator
plastics
polysiloxane
pulse shape
radiation detection
silicones
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Summary:Plastic scintillators based on thermoplastics, such as polystyrene and poly­(vinyl toluene) (PVT), are capable of neutron and γ radiation detection via pulse shape discrimination (PSD) when overdoped with select fluorescent molecules. This class of plastic scintillator has been extensively studied but is limited to applications suitable for thermoplastics. For applications requiring flexibility, scintillators composed of elastomers, such as polysiloxanes, offer an alternative to PVT scintillators. Polysiloxane scintillators are inherently flexible and have a short processing time on the order of 3 h in air and equivalent or better detection capability at reduced doping concentration (
ISSN:2637-6105
2637-6105
DOI:10.1021/acsapm.0c00641