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J Radiat Prot > Volume 34(3); 2009 > Article
Journal of Radiation Protection 2009;34(3):107-0.
4-D 전산모사 기법을 이용한 호전형 컴프턴 카메라의 영상 특성 평가
서희;이세형;박진형;김찬형;박성호;이주한;이춘식;이재성;
Image Quality of a Rotating Compton Camera Evaluated by Using 4-D Monte Carlo Simulation Technique
Seo, Hee;Lee, Se-Hyung;Park, Jin-Hyung;Kim, Chan-Hyeong;Park, Sung-Ho;Lee, Ju-Hahn;Lee, Chun-Sik;Lee, Jae-Sung;
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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