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Technical Status of Environmental Radiation Monitoring using a UAV and Its Field Application to the Aerial Survey

무인기를 이용한 광역부지 환경방사선측정 기술 현황 및 현장 적용 연구

  • 지영용 (한국원자력연구원 환경안전평가연구부) ;
  • 민병일 (한국원자력연구원 환경안전평가연구부) ;
  • 서경석 (한국원자력연구원 환경안전평가연구부) ;
  • 정성엽 (한국원자력연구원 환경안전평가연구부) ;
  • 김경표 (한국원자력연구원 국제전략부) ;
  • 박진호 (한국원자력연구원 원자력안전연구소)
  • Received : 2020.09.14
  • Accepted : 2020.09.26
  • Published : 2020.10.31

Abstract

According to lessons learned from an accident of Fukushima Daiichi nuclear power plant, it is advisable to make a comprehensive radiation survey by the accident phase for efficient response and risk management using diverse survey platforms. This study focuses on the technical status of environmental radiation monitoring using a UAV (Unmanned aerial vehicle) and the performance test of developed aerial survey system based on two detectors with an high energy resolution through the field application to contaminated areas. Finally, the performance of aerial survey at diverse flight heights was successfully achieved by introducing the correction factor to represent the results into ambient dose rate at 1m above the ground.

후쿠시마 원전사고의 교훈으로 사고단계별 다양한 방사선 탐사 수단을 이용하여 포괄적인 환경방사선을 측정하는 것이 효율적인 사고대응과 위험관리를 위하여 바람직하다. 본 연구에서는 드론 등의 무인기를 이용한 환경방사선 탐사 기술 현황으로 분광분석이 가능한 고분해능의 방사선 검출기 2대를 활용한 환경방사선 탐사시스템을 개발하고, 이를 무인기에 장착하여 직접 사고현장에 적용함으로써 그 성능을 평가하였다. 최종적으로 다양한 비행고도에서의 탐사결과를 지상 1m 높이에서의 선량률로 환산하기 위한 보정인자를 도출함으로써 성공적인 현장 적용성 평가 결과를 도출할 수 있었다.

Keywords

References

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