Economic and Environmental Geology (자원환경지질)

The Korean Society of Economic and Environmental Geology (대한자원환경지질학회)
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Particle Analysis of Uranium Bearing Materials Using Ultra High-resolution Isotope Microscope System

초고분해능 동위원소현미경 시스템을 활용한 우라늄 핵종 입자 분석 기술

  • Jeongmin Kim (Earth & Environmental Analysis Team, Ochang Institute of Analytical Science, Korea Basic Science Institute) ;
  • Yuyoung Lee (Research Center for Geochronology & Isotope Analysis, Ochang Institute of Analytical Science, Korea Basic Science Institute) ;
  • Jung Youn Choi (Safeguards Division, Korea Institute of Nuclear Nonproliferation and Control) ;
  • Haneol Lee (Safeguards Division, Korea Institute of Nuclear Nonproliferation and Control) ;
  • Hyunju Kim (Safeguards Division, Korea Institute of Nuclear Nonproliferation and Control)
  • 김정민 (한국기초과학지원연구원 오창분석과학연구소 환경분석팀) ;
  • 이유영 (한국기초과학지원연구원 오창분석과학연구소 환경분석연구부) ;
  • 최정윤 (한국원자력통제기술원 안전조치실) ;
  • 김현주 (한국원자력통제기술원 안전조치실) ;
  • 이한얼 (한국원자력통제기술원 안전조치실)
  • Received : 2023.09.17
  • Accepted : 2023.10.21
  • Published : 2023.10.30
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Abstract

Nuclear materials such as uranium are used as fuel for nuclear power generation, but there is a high possibility that they will be used for non-peaceful purposes, so international inspections and regulations are being conducted. Isotope analysis data of fine particulate obtained from nuclear facilities can provide important information on the origin and concentration method of nuclear material, so it is widely used in the field of nuclear safety and nuclear forensics. In this study we describe the analytical method that can directly identify nuclear particles and measure their isotopic ratios for fine samples using a large-geometry secondary ion mass spectrometer and introduce its preliminary results. Using the U-200 standard material, the location of fine particles was identified and the results consistent with the standard value were obtained through microbeam analysis.

우라늄 등의 핵물질은 원자력 발전의 연료로 사용되지만, 비평화적 용도로 전용될 가능성이 커서 이에 대한 국제적인 사찰과 규제가 이루어지고 있다. 핵물질 사용 시설에서 확보한 미세 입자상 물질의 동위원소 분석 자료는 핵물질의 기원 및 농축 방법등에 대한 중요한 정보를 제공할 수 있어 핵 안전 및 핵 사찰 분야에서 널리 활용되고 있다. 이번 연구에서는 국내 최초로 국내에 설치된 대형 이차이온 질량분석기를 활용해 미세 입자 시료에 대한 우라늄 동위원소를 측정한 결과를 소개한다. U-200 표준물질을 사용해 미세 입자의 위치를 확인하고 고정밀 정밀분석을 통해 오차범위내에서 표준값과 일치하는 결과를 얻을 수 있었다.

Keywords

Acknowledgement

이 연구는 한국기초과학지원연구원 연구과제 (C300500, PE2023109)의 지원을 통해 작성되었으며, 심사에 도움을 준 검토 위원께 감사드립니다.

References

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