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).
References
- G.W. Phillips, D.J. Nagel, T. Coffey, A Primer of the Detection of Nuclear and Radiological Weapons, Center for Technology and National Security Policy National Defense University, 2005 available at, https://apps.dtic.mil/sti/pdfs/ADA436197.pdf.
- NRC, Special Nuclear Material, US Nuclear Regulatory Commission, USA, available at: http://www.nrc.gov/materials/sp-nucmaterials.html.
- J. Medalia, Detection of Nuclear Weapons and Materials: Science, Technologies, Observations, CRS Report for Congress, 2009, R40154.
- R.C. Runkle, D.L. Chichester, S.J. Thompson, Rattling nucleons: new developments in active interrogation of special nuclear material, Nucl. Instrum. Methods Phys. Res. A 663 (2012) 75-95. https://doi.org/10.1016/j.nima.2011.09.052
- M.C. Hamel, et al., Active neutron and gamma-ray imaging of highly enriched uranium for treaty verification, Sci. Rep. 7 (2017) 1-10. https://doi.org/10.1038/s41598-016-0028-x
- P.A. Hausladen, et al., Fast-neutron Coded-Aperture Imaging of Special Nuclear Material Configurations, 53rd Annual Meeting of the INMM, Orlando, Fla, USA, 2012.
- X. Liang, et al., Self-supporting design of a time-encoded aperture, gamma-neutron imaging system, Nucl. Instrum. Methods Phys. Res. A 951 (2020), 162964.
- M.J. Cieslak, K.A. Gamage, R. Glover, C.J. Taylor, Pulse shape discrimination performance of a pixelated plastic scintillator (EJ-299-34) for a coded-aperture based dual particle imaging system, J. Instrum. 14 (2019), 07017.
- M. Sweany, P. Marleau, S. Hammon, G. Kallenbach, J.K. Polack, Design and Evaluation of a Pixelated PSD-Capable Scintillator Detector with SiPM Readout, Sandia Natl. Lab., Livermore, 2019. No. SAND2019-10315.
- M.L. Ruch, M. Flaska, S.A. Pozzi, Pulse shape discrimination performance of stilbene coupled to low-noise silicon photomultipliers, Nucl. Instrum. Methods Phys. Res. A 793 (2015) 1-5. https://doi.org/10.1016/j.nima.2015.04.053
- M.P. Taggart, P.J. Sellin, Comparison of the pulse shape discrimination performance of plastic scintillators coupled to a SiPM, Nucl. Instrum. Methods Phys. Res. A 908 (2018) 148-154. https://doi.org/10.1016/j.nima.2018.08.054
- J. Boo, M.D. Hammig, M. Jeong, Compact lightweight imager of both gamma rays and neutrons based on a pixelated stilbene scintillator coupled to a silicon photomultiplier array, Sci. Rep. 11 (2021) 1-14. https://doi.org/10.1038/s41598-020-79139-8
- C. Kim, J.Y. Yeom, G. Kim, Digital n-γ pulse shape discrimination in organic scintillators with a high-speed digitizer, J. Radiat. Prot. Res. 44 (2019) 53-63. https://doi.org/10.14407/jrpr.2019.44.2.53
- J. Boo, M.D. Hammig, M. Jeong, Row-column readout method to mitigate radiographic-image blurring from multipixel events in a coded-aperture imaging system, IEEE Trans. Nucl. Sci. 68 (2021) 1175-1183. https://doi.org/10.1109/TNS.2021.3066414
- M. Jeong, M.D. Hammig, Comparison of gamma ray localization using system matrixes obtained by either MCNP simulations or ray-driven calculations for a coded-aperture imaging system, Nucl. Instrum. Methods Phys. Res. A 954 (2020), 161353.
- A. Lintereur, J. Ely, J. Stave, B. Macdonald, Neutron and Gamma Ray Pulse Shape Discrimination with Polyvinyltoluene, Pacific NW, Natl. Lab., 2012. PNNL-21609.
- N. Zaitseva, et al., Plastic scintillators with efficient neutron/gamma pulse shape discrimination, Nucl. Instrum. Methods Phys. Res. A 668 (2012) 88-93. https://doi.org/10.1016/j.nima.2011.11.071
- M. Jeong, B. Van, B.T. Wells, L.J. D'Aries, M.D. Hammig, Comparison between pixelated scintillators: CsI(Tl), LaCl3(Ce) and LYSO(Ce) when coupled to a silicon photomultipliers array, Nucl. Instrum. Methods Phys. Res. A 893 (2018) 75-83. https://doi.org/10.1016/j.nima.2018.03.024
- J. Boo, S. Park, S. Hyeon, M. Jeong, Coded-aperture based dual particle imager for the measurement of dose rate of both gamma-ray and neutron, in: 2021 Fall Meeting of Korean Association of Radiation Protection, Jeju, South Korea, 2021. November 24-26.