Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Pulse shape discrimination using a stilbene scintillator array coupled to a large-area SiPM array for hand-held dual particle imager applications

  • Jihwan Boo (Department of Nuclear Engineering, Seoul National University) ;
  • Mark D. Hammig (Department of Nuclear Engineering & Rad. Sci, University of Michigan) ;
  • Manhee Jeong (Department of Nuclear and Energy Engineering, Jeju National University)
  • Received : 2022.04.08
  • Accepted : 2022.10.14
  • Published : 2023.02.25
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Abstract

A dual-particle imager (DPI) is configured in a hand-held form factor, then one can efficiently and conveniently deploy the DPI to detect the presence of special nuclear materials (SNM) and identify any isotopic variations that differ from their natural abundances. Here we show that by maximizing the areal coupling between a pixelated scintillator array and the partitioned photosensor readout such as a silicon photomultiplier (SiPM), the information utilization of the gamma-ray and neutron information in the radiation field can be enhanced, thus enabling one to rapidly acquire spatial maps of the distributions on gamma-ray and neutron emitters.

Keywords

Acknowledgement

This work was supported by Nuclear Safety Research Program through the Korea Foundation of Nuclear Safety (KoFONS) using the financial resource granted by the Nuclear Safety and Security Commission (NSSC) of the Republic of Korea (No. 2103085).

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