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Manufacturing and characterization of a boron-loaded fast-cured plastic organic scintillator

  • Tyler D. Doležal
  • , Juan J. Manfredi
  • , Brian G. Frandsen
  • , James E. Bevins
  • , Connor Gautam
  • , Theodore W. Stephens
  • , Thomas Ruland
  • , Michael T. Febbraro

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

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 ± 4.2 keVee, which was 1.47 ± 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.

Funding

This research was supported by the Defense Threat Reduction Agency, United States under grant HDTRA113691 1, U.S. Department of Energy, Office of Science, Office of High Energy Physics , under Award Number DE-AC05-00OR22725 , and the ORNL Laboratory Directed Research Development Program, United States .

Keywords

  • Neutron detector
  • Organic scintillator
  • Photo-cured scintillator
  • Plastic scintillator
  • Pulse shape discrimination

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