Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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The Study Image Aquisition System for Radiation Source Using the Stereo Gamma-ray Detector

스테레오 감마선 탐지장치를 이용한 감마선원 분포측정 시스템에 관한 연구

  • Hwang, Young-Gwan (Korea Atomic Energy Research Institute) ;
  • Lee, Nam-Ho (Korea Atomic Energy Research Institute) ;
  • Lee, Seung-Min (Department of Electrical and Electronic Communication Education, ChungNam National University)
  • 황영관 (한국원자력연구원 원자력융합기술개발부) ;
  • 이남호 (한국원자력연구원 원자력융합기술개발부) ;
  • 이승민 (충남대학교 전기전자통신공학교육과)
  • Received : 2015.01.23
  • Accepted : 2015.04.01
  • Published : 2015.04.25
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Abstract

Nuclear power plant has increased continuously for power production in all over the world and the interest about nuclear accident and the dismantling of aging nuclear power plant has been a growing. The leaked radioactive source that is generated by radiation accidents must detect and remove to minimized the damage as soon as possible. Gamma-ray detection system that have been developed until now cannot provide the precise position of radioactive sources because they detect and imaging the position of radiation sources in just two dimensions. In this paper, stereo gamma ray detection system has developed and the algorithm for calculation of the distance has implemented to be able to measure the distribution of the leakage gamma ray source for the system. Stereo camera calibration for distance detection was conducted with the correction pattern and LED light and we carried out performance test of the system for the LED light source and a gamma ray source. In both experiments the results of the performance test, it was confirmed to have a 5% error. The results of this paper is used as a material for the development of gamma-ray imaging device.

전 세계적으로 전력생산을 위해 원전 증설이 지속적으로 증가하고 있으며 이에 따라 노후 원전에 대한 해체 및 원전사고에 대한 관심이 증가하고 있다. 원전 사고 시 발생되는 감마선원의 누출은 신속하고 정확한 탐지해야 그 피해를 최소화 시킬 수 있다. 기 개발된 장비는 선원에 대한 방향정보만을 나타내고 있어 정확한 공간상의 분포를 알 수 없다. 본 논문에서 개발한 스테레오 감마선탐지장치는 누출된 감마선원에 대한 분포를 측정할 수 있도록 구현하고 거리탐지를 위한 알고리즘을 적용하였다. 거리탐지를 위하여 스테레오 보정을 LED광과 보정패턴을 사용하여 진행하였고, LED 광원과 감마선원을 대상으로 성능시험을 진행하였다. 성능시험 결과 두 실험에서 5%이하의 오차를 갖게 됨을 확인하였다. 본 논문의 결과는 향후 고속 경량화 된 감마선 영상화 장치 개발을 위한 자료로 활용될 것이다.

Keywords

References

  1. K. A. Hughes and J. A. Lightfoot, "Radscan 600-A portable instrument for the remote imaging of gamma contamination: Its design and use in aiding decommissioning strategy," in Proc. IEEE Nucl. Sci.Symp. Conf. Rec., vol. 2, pp. 930-933, 1996.
  2. K. A. Hughes, G. Mottershead, D. J. Thornley, and A. P. Comrie, "Use of gamma ray imaging instrumentation in support of TRU waste characterization challenges," in Proc. WM'04 Conf. Rec., 2004.
  3. S. X. Wang and A. M. Taratorin, Magnetic Information Storage Technology, Academic Press, 1999, ch. 12.
  4. Fisher A and Chard P, "Use of a gamma-imaging device to optimise measurement of uranium hold-up", Proc. Of the 25 Annual Safeguards Research and Development Association (ESARDA) Symposium on Safeguards and Nuclear Materials Management, Stockholm, 2003.
  5. O. Gal, F. Jean, F. Lainé,, and C. Lé,vê,que "The CARTOGAM portable gamma imaging system", IEEE Trans. Nucl. Sci., vol. 47, pp. 952-956, 2000. https://doi.org/10.1109/23.856725
  6. Gmar, M., et al. "Development of Coded-Aperture Imaging With a Compact Gamma Camera." IEEE Transactions on Nuclear Science, vol, 51, pp. 1682-1687, 2004. https://doi.org/10.1109/TNS.2004.832608
  7. F. Carrel, et al., GAMPIX: a new gamma imaging system for radiological safety and homeland security purposes, in: IEEE NSS Conference Record, 2011.
  8. O. Gal "Development of a portable gamma camera with coded aperture", Nucl. Instrum. Methods Phys. Res. Section A-Accel. Spectrom. Detectors Assoc. Equip., vol. 563, no. 1, pp. 233-237, 2006 https://doi.org/10.1016/j.nima.2006.01.119
  9. Zhengyou Zhang,"A Flexible New Technique For Camera Calibration", IEEE Transactions on Pattern Analysis and Machine intelligence, Vol. 22, No. 11, pp.1330-1334, 2000. https://doi.org/10.1109/34.888718
  10. Sung-in Choi, Soon-Young Park, "DOF Correction of Heterogeneous Stereoscopic Cameras", Journal of The Institute of Electronics and Information Engineers Vol. 51, NO. 7, July 2014.
  11. Hartley and Zisserman, "Multiple view Geometry in computer view", Cambridge University Press : Cambridge, 2nd Edition, 2003.
  12. Nam-Oh Lee, Soon-Yong Park, and Seung-Min Lee, "Visualization of The Three Dimensional Information Using Stereo Camera", Journal of The Institute of Electronics and Information Engineers Vol. 47, NO. 4, July 2010.

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