Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Fabrication and Characterization of a Fiber-optic Radiation Sensor for Detection of Tritium

삼중수소 검출용 광섬유 방사선 센서의 제작 및 특성분석

  • Jang, Kyoung-Won (School of Biomedical Engineering, College of Biomedical & Health Science, Research Institute of Biomedical Engineering, Konkuk University) ;
  • Cho, Dong-Hyun (School of Biomedical Engineering, College of Biomedical & Health Science, Research Institute of Biomedical Engineering, Konkuk University) ;
  • Yoo, Wook-Jae (School of Biomedical Engineering, College of Biomedical & Health Science, Research Institute of Biomedical Engineering, Konkuk University) ;
  • Lee, Bong-Soo (School of Biomedical Engineering, College of Biomedical & Health Science, Research Institute of Biomedical Engineering, Konkuk University) ;
  • Moon, Joo-Hyun (Department of Energy & Environment System Engineering, Dongguk University) ;
  • Park, Byung-Gi (Department of Energy & Environment Engineering, Soonchunhyang University) ;
  • Cho, Young-Ho (Department of Radiological Science, Catholic University of Daegu) ;
  • Kim, Sin (Department of Nuclear & Energy Engineering, Applied Radiological Science Research Institute, Cheju National University)
  • 장경원 (건국대학교 의학공학부 의공학실용기술연구소) ;
  • 조동현 (건국대학교 의학공학부 의공학실용기술연구소) ;
  • 유욱재 (건국대학교 의학공학부 의공학실용기술연구소) ;
  • 이봉수 (건국대학교 의학공학부 의공학실용기술연구소) ;
  • 문주현 (동국대학교 에너지.환경시스템학부) ;
  • 박병기 (순천향대학교 에너지환경공학과) ;
  • 조영호 (대구가톨릭대학교 방사선학과) ;
  • 김신 (제주대학교 에너지공학과, 방사선응용과학연구소)
  • Published : 2009.08.25
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Abstract

In this study, we have fabricated a fiber-optic radiation sensor for detection of tritium using inorganic scintillators and optical fibers. We have tested various kinds of inorganic scintillators such as $Gd_2O_2S$ : Tb, $Y_3Al_5O_{12}$ : Ce, and CsI : Tl to select the most effective sensor tip. In addition, we have measured the scintillating lights using a photomultiplier tube as a function of distance between sensor tips to the source with the different activities of hydride tritium. The final results are compared with those which are obtained using a surface activity monitor.

본 연구에서는 무기섬광체와 광섬유를 이용하여 삼중수소 검출용 광섬유 방사선 센서를 제작하였다. 무기섬광체 선택을 위해 $Gd_2O_2S$ : Tb, $Y_3Al_5O_{12}$ : Ce, CsI : Tl을 이용하여 센서팁을 제작한 후, 금속 수소화물 형태의 삼중수소를 이용하여 섬광효율이 가장 좋은 섬광체를 선별하였다. 또한 선정된 섬광체를 사용하여 제작한 센서를 이용하여 삼중수소 선원으로부터 거리에 따른 섬광량을 계측하였고 선원의 방사능 세기에 따른 섬광량을 측정하여 표면 방사능 모니터의 결과와 비교 분석하였다.

Keywords

References

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