Image Quality of a Rotating Compton Camera Evaluated by Using 4-D Monte Carlo Simulation Technique

4-D 전산모사 기법을 이용한 호전형 컴프턴 카메라의 영상 특성 평가

  • Seo, Hee (Department of Nuclear Engineering, Hanyang University) ;
  • Lee, Se-Hyung (Department of Radiation Oncology, Asan Medical Center, College of Medicine, University of Ulsan) ;
  • Park, Jin-Hyung (Department of Nuclear Engineering, Hanyang University) ;
  • Kim, Chan-Hyeong (Department of Nuclear Engineering, Hanyang University) ;
  • Park, Sung-Ho (Department of Radiation Oncology, Asan Medical Center, College of Medicine, University of Ulsan) ;
  • Lee, Ju-Hahn (Department of Physics, Chung-Ang University) ;
  • Lee, Chun-Sik (Department of Physics, Chung-Ang University) ;
  • Lee, Jae-Sung (Department of Nuclear Medicine and Interdisciplinary Program in Radiation Applied Life Science, Seoul National University)
  • 서희 (한양대학교 원자력공학과) ;
  • 이세형 (울산대학교 의과대학 서울아산병원 방사선종양학과) ;
  • 박진형 (한양대학교 원자력공학과) ;
  • 김찬형 (한양대학교 원자력공학과) ;
  • 박성호 (울산대학교 의과대학 서울아산병원 방사선종양학과) ;
  • 이주한 (중앙대학교 물리학과) ;
  • 이춘식 (중앙대학교 물리학과) ;
  • 이재성 (서울대학교 핵의학교실)
  • Published : 2009.09.30

Abstract

A Compton camera, which is based on Compton kinematics, is a very promising gamma-ray imaging device in that it could overcome the limitations of the conventional gamma-ray imaging devices. In the present study, the image quality of a rotating Compton camera was evaluated by using 4-D Monte Carlo simulation technique and the applicability to nuclear industrial applications was examined. It was found that Compton images were significantly improved when the Compton camera rotates around a gamma-ray source. It was also found that the 3-D imaging capability of a Compton camera could enable us to accurately determine the 3-D location of radioactive contamination in a concrete wall for decommissioning purpose of nuclear facilities. The 4-D Monte Carlo simulation technique, which was applied to the Compton camera fields for the first time, could be also used to model the time-dependent geometry for various applications.

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