방사성폐기물학회지 (Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT))

  • 제22권2호
  • /
  • Pages.145-157
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  • 2024
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  • 1738-1894(pISSN)
  • /
  • 2288-5471(eISSN)
한국방사성폐기물학회 (Korean Radioactive Waste Society)
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Feasibility Study of Environmental and Geographical Data Transfer (EGDT) Device for Wide-Area Environmental Sampling in Undeclared Areas

  • Seungil Ha (Korea Institute of Nuclear Nonproliferation and Control) ;
  • Dalhyeon Ryu (Korea Institute of Nuclear Nonproliferation and Control) ;
  • Giyoon Kim (Korea Institute of Nuclear Nonproliferation and Control) ;
  • Myungsoo Kim (Korea Institute of Nuclear Nonproliferation and Control)
  • 투고 : 2024.03.20
  • 심사 : 2024.05.02
  • 발행 : 2024.06.30
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초록

Undeclared nuclear activities are challenging given the lack of information from the sites involved in such activities. Wide-area environmental sampling (WAES) can be an effective method to detect undeclared nuclear activities. However, it is crucial to address the potential risks during the WAES, including sample tampering or extortions. Therefore, tracking and monitoring of various on-site data is imperative to accurately interpret the status of samples and workers throughout the WAES process. 'Environmental and Geographical Data Transfer (EGDT)' was developed for the real-time monitoring of integrated on-site data. EGDT module is equipped with various sensors and can be attached to a worker's uniform or a sample storage box. This study demonstrated the technical effectiveness of EGDT by exploring three experimental methodologies for feasibility assessment. Compared to the Normal Operation case, the inference of the Sample Extortion case was predominantly based on changes in lux and dose rate. The inference of the Out-of-Work-Area case primarily relied on changes in dose rate and acceleration. Finally, the preliminary evaluation of the performance of the developed prototype was conducted, and a foundation was established for enhancing the application in the WAES process.

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과제정보

This article was supported by the Nuclear Safety Research Programs through the KoFONS using financial resources granted by NSSC of the Republic of Korea (No. 1905010, RS-2024-00405237).

참고문헌

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