Radiation Distribution Around Fukushima Daiichi Nuclear Power Station Decade After the Accident

• 발행기관: 한국방사성폐기물학회
• 저자명: Yukihisa Sanada Miyuki Sasaki Hiroshi Kurikami Fumiya Nagao Satoshi Mikami
• 간행물 정보: 『Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT)』Vol.21 No.1, 95~114쪽, 전체 20쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2023.03.30

국문 초록

During the decades after the Fukushima Daiichi Nuclear Power Station (FDNPS) accident, ambient dose rates have markedly decreased when compared to those at the early state of the accident. Government projects have been continuously conducted by surveying the ambient dose rate and radiocesium distributions. Airborne surveys using crewed helicopters and unmanned aerial vehicles (UAVs) are the best methods for obtaining an overall picture of the distribution. However, ground-based surveys are required for accurate measurements near the population. The differences between these methods include the knowledge of the post depositional behavior of radionuclides in land use. The survey results form the basis for policy decisions such as lifting evacuation zones, decontamination, and other countermeasures. These surveys contain crucial findings regarding post-accident responses. This paper reviews the survey methods of government projects and current situation around the FDNPS. The visualization methods and databases of ambient dose rates are also reviewed to provide information to the population.

키워드

Fukushima Daiichi Nuclear Power Station accident Ambient dose rate Airborne radiation survey Unmanned aerial vehicles