Nuclear Engineering and Technology

  • 제54권2호
  • /
  • Pages.601-607
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  • 2022
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Design and characterization of a Muon tomography system for spent nuclear fuel monitoring

  • Park, Chanwoo (Department of Radiation Convergence Engineering, College of Health Science, Yonsei University) ;
  • Baek, Min Kyu (Department of Radiation Convergence Engineering, College of Health Science, Yonsei University) ;
  • Kang, In-soo (Department of Radiation Convergence Engineering, College of Health Science, Yonsei University) ;
  • Lee, Seongyeon (Department of Radiation Convergence Engineering, College of Health Science, Yonsei University) ;
  • Chung, Heejun (Korea Institute of Nuclear Nonproliferation and Control) ;
  • Chung, Yong Hyun (Department of Radiation Convergence Engineering, College of Health Science, Yonsei University)
  • 투고 : 2021.01.04
  • 심사 : 2021.08.25
  • 발행 : 2022.02.25
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초록

In recent years, monitoring of spent nuclear fuel inside dry cask storage has become an important area of national security. Muon tomography is a useful method for monitoring spent nuclear fuel because it uses high energy muons that penetrate deep into the target material and provides a 3-D structure of the inner materials. We designed a muon tomography system consisting of four 2-D position sensitive detector and characterized and optimized the system parameters. Each detector, measuring 200 × 200 cm2, consists of a plastic scintillator, wavelength shifting (WLS) fibers and, SiPMs. The reconstructed image is obtained by extracting the intersection of the incoming and outgoing muon tracks using a Point-of-Closest-Approach (PoCA) algorithm. The Geant4 simulation was used to evaluate the performance of the muon tomography system and to optimize the design parameters including the pixel size of the muon detector, the field of view (FOV), and the distance between detectors. Based on the optimized design parameters, the spent fuel assemblies were modeled and the line profile was analyzed to conduct a feasibility study. Line profile analysis confirmed that muon tomography system can monitor nuclear spent fuel in dry storage container.

키워드

과제정보

This work was supported by the 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. 1804025).

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