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DOI: 10.1016/j.nima.2023.168602
Keywords
Neutron detector; Pulse shape discrimination; Plastic scintillator; Organic scintillator; Photo-cured scintillator
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A novel fast-cured, boron-loaded, plastic organic scintillator was developed and characterized. The scintillator was manufactured quickly by adding commercially available fast-curing monomers, isobornyl acrylate and 1,6-Hexanediol dimethacrylate. The device showed good performance with a light yield of approximately 70% compared to an aged EJ-276 detector, and higher light output for neutron capture.
A novel fast-cured, boron-loaded, plastic organic scintillator was developed and characterized. A diisopropylnaphthalene-containing scintillator was manufactured in minutes with the addition of two commercially available fast-curing monomers, isobornyl acrylate (IBOA) and 1,6-Hexanediol dimethacrylate (HDDMA). The light yield of the device was measured to be approximately 70% relative to a similarly sized, but several-year-aged, EJ-276 detector. Using a coincidence capture technique, the neutron capture light output was found to be 87.7 & PLUSMN; 4.2 keVee, which was 1.47 & PLUSMN; 0.07 greater than the light output from a 59.5 keV electron. Producing a viable fast-cured and thermal-neutron-sensitive detector enables the capability to pursue cost-effective 3D printed thermal neutron detectors in a timely manner.
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