Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Measurements and characterizations of cerenkov light in fiber-optic radiation sensor irradiated by high energy electron beam

고에너지 전자선 측정을 위한 광섬유 방사선 센서에서의 체렌코프 빛 측정 및 분석

  • Jang, Kyoung-Won (School of Biomedical Engineering, College of Biomedical & Health Science) ;
  • Cho, Dong-Hyun (School of Biomedical Engineering, College of Biomedical & Health Science) ;
  • Jeong, Sun-Cheol (School of Biomedical Engineering, College of Biomedical & Health Science) ;
  • Jun, Jae-Hun (School of Biomedical Engineering, College of Biomedical & Health Science) ;
  • Lee, Bong-Soo (School of Biomedical Engineering, College of Biomedical & Health Science) ;
  • Kim, Sin (Department of Nuclear & Energy Engineering, Cheju National University) ;
  • Cho, Hyo-Sung (Basic Atomic Energy Research Institute and Department of Radiological Science) ;
  • Park, Sung-Yong (Center for Proton Therapy, National Cancer Center) ;
  • Shin, Dong-Ho (Center for Proton Therapy, National Cancer Center)
  • 장경원 (건국대학교 의료생명대 의학공학부) ;
  • 조동현 (건국대학교 의료생명대 의학공학부) ;
  • 정순철 (건국대학교 의료생명대 의학공학부) ;
  • 전재훈 (건국대학교 의료생명대 의학공학부) ;
  • 이봉수 (건국대학교 의료생명대 의학공학부) ;
  • 김신 (제주대학교 공과대학 에너지공학과) ;
  • 조효성 (연세대학교 보건대학 방사선학과) ;
  • 박성용 (국립암센터 양성자치료센터) ;
  • 신동호 (국립암센터 양성자치료센터)
  • Published : 2006.05.31
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Abstract

In general, Cerenkov light is produced by a charged particle that passes through a medium with a velocity greater than that of visible light. Although the wavelength of Cerenkov light is very broad, the peak is in the almost visible range from 400 to 480 nm. Therefore, it always causes a problem to detect a real light signal that is generated in the scintillator on the fiber-optic sensor tip for dose measurements of high-energy electron beam. The objectives of this study are to measure, characterize and remove Cerenkov light generated in a fiber-optic radiation sensor tip to detect a real light signal from the scintillator. In this study, the intensity of Cerenkov light is measured and characterized as a function of incident angle of electron beam from a LINAC, and as a function of the energy of electron beam. As a measuring device, a photodiode-amplifier system is used, and a subtraction method using a background optical fiber is investigated to remove Cerenkov light.

Keywords

References

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