Journal of Radiation Protection and Research

  • 제46권3호
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  • Pages.112-119
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  • 2021
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  • 2508-1888(pISSN)
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  • 2466-2461(eISSN)
대한방사선방어학회 (The Korean Association for Radiation Protection)
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Design and Fabrication of CLYC-Based Rotational Modulation Collimator (RMC) System for Gamma-Ray/Neutron Dual-Particle Imager

  • Kim, Hyun Suk (Division of Radiation Regulation, Korea Institute of Nuclear Safety (KINS)) ;
  • Lee, Jooyub (Department of Nuclear Engineering, Sejong University) ;
  • Choi, Sanghun (Division of Technology Planning Management, Korea Research Institute for defense Technology planning and advancement (KRIT)) ;
  • Bang, Young-bong (Transdisciplinary Department of Medicine and Advanced Technology, Seoul National University Hospital) ;
  • Ye, Sung-Joon (Department of Applied Bioengineering, Graduate School of Convergence Science and Technology, Seoul National University) ;
  • Kim, Geehyun (Department of Nuclear Engineering, Seoul National University)
  • 투고 : 2021.06.14
  • 심사 : 2021.09.02
  • 발행 : 2021.09.30
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초록

Background: This work aims to develop a new imaging system based on a pulse shape discrimination-capable Cs2LiYCl6:Ce (CLYC) scintillation detector combined with the rotational modulation collimator (RMC) technique for dual-particle imaging. Materials and Methods: In this study, a CLYC-based RMC system was designed based on Monte Carlo simulations, and a prototype was fabricated. Therein, a rotation control system was developed to rotate the RMC unit precisely, and a graphical user interface-based software was also developed to operate the data acquisition with RMC rotation. The RMC system was developed to allow combining various types of collimator masks and detectors interchangeably, making the imaging system more versatile for various applications and conditions. Results and Discussion: Operational performance of the fabricated system was studied by checking the accuracy and precision of the collimator rotation and obtaining modulation patterns from a gamma-ray source repeatedly. Conclusion: The prototype RMC system showed reliability in its mechanical properties and reproducibility in the acquisition of modulation patterns, and it will be further investigated for its dual-particle imaging capability with various complex radioactive source conditions.

키워드

과제정보

This work was supported by the Nuclear Safety Research Program through the Korea Foundation of Nuclear Safety (KOFONS), granted financial resource from the Nuclear Safety and Security Commission (NSSC), Republic of Korea (No. 1403024).

참고문헌

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