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Measurements of relative depth dose rates for a brachytherapy Ir-192 sourceusing an organic scintillator fiber-optic radiation sensor

유기 섬광체-광섬유 방사선 센서를 이용한 근접 방사선원 Ir-192의 상대 깊이 선량율 측정

  • Shin, Sang-Hun (School of Biomedical Engineering, College of Biomedical & Health Science, Research Institute of Biomedical Engineering, Konkuk University) ;
  • 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) ;
  • Seo, Jeong-Ki (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) ;
  • Kim, Sin (Department of Nuclear & Energy Engineering, Applied Radiological Science Research Institute, Cheju National University) ;
  • Park, Byung-Gi (Department of Energy & Environment Engineering, Soonchunhyang University)
  • 신상훈 (건국대학교 의료생명대학 의학공학부, 의공학 실용기술 연구소) ;
  • 장경원 (건국대학교 의료생명대학 의학공학부, 의공학 실용기술 연구소) ;
  • 조동현 (건국대학교 의료생명대학 의학공학부, 의공학 실용기술 연구소) ;
  • 유욱재 (건국대학교 의료생명대학 의학공학부, 의공학 실용기술 연구소) ;
  • 서정기 (건국대학교 의료생명대학 의학공학부, 의공학 실용기술 연구소) ;
  • 이봉수 (건국대학교 의료생명대학 의학공학부, 의공학 실용기술 연구소) ;
  • 문주현 (동국대학교 에너지환경대학 에너지환경시스템공학과) ;
  • 김신 (제주대학교 공과대학 에너지공학과, 방사선응용과학연구소) ;
  • 박병기 (순천향대학교 공과대학 에너지환경공학과)
  • Published : 2008.11.30

Abstract

In this study, we have fabricated a fiber-optic radiation sensor using an organic scintillator and plastic optical fiber for brachytherapy dosimetry. Also, we have measured relative depth dose rates of Ir-192 source using a fiber-optic sensor and compared them with the results obtained using a conventional EBT film. Cerenkov lights which can be a noise in measuring scintillating light with a fiber-optic sensor are measured and eliminated by using of a background optical fiber. It is expected that a fiber-optic radiation sensor can be used in brachytherapy dosimetry due to its advantages such as a low cost, simple usage and a small volume.

Keywords

References

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