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  • [Health Phys.] Establishment of Criteria for Skin Decontamination in a Radiation Emergency.

    [Health Phys.] Establishment of Criteria for Skin Decontamination in a Radiation Emergency.

    KIRAMS / 유재룡*

  • 출처
    Health Phys.
  • 등재일
    2018 Sep
  • 저널이슈번호
    115(3):369-374. doi: 10.1097/HP.0000000000000891.
  • 내용

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    Abstract
    In the event of a radiological or nuclear emergency, internal or external contamination (or both) by radionuclides can occur. In such cases, removal of the radionuclides from the injured skin is important because such surface contamination may induce skin damage such as deterministic effects at very high skin doses (2 to 3 Gy). In addition, internal contamination will occur due to radionuclide absorption through the injured skin. Previous studies have suggested various decontamination criteria. However, those criteria are impractical in the case of large-scale population monitoring. Here, to identify practical decontamination criteria, the VARSKIN 4.0 software code is used to assess skin doses originating from surface contamination by Co, I, and Cs. In addition, Integrated Modules for Bioassay Assessment dosimetry software is used to assess the effective doses following radionuclide intake through external contamination for the same three radionuclides. The effective dose dependence on the soluble material type is also assessed. In particular, the effective dose due to radionuclide absorption is found to be greater than the skin dose rate due to surface contamination for the same radioactivity levels. Based on the calculation results, decontamination criteria and actions that depend on the effective dose and surface contamination level (Bq cm) for alpha and beta or gamma radiation are suggested. Actions for contaminated injured persons are classified as no action, optional, recommended, or required.

     


    Author information

    Yoo J1, Jin YW1.
    1
    National Radiation Emergency Medical Center, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea.

     

  • 연구소개
    방사선비상 시 피부제염완료 기준 설정에 관한 논문입니다. 방사선비상 시 방사성물질이 흡입, 구강섭취 또는 상처(피부)를 통해 인체 내로 유입되어 내부피폭이 유발됩니다. 특히 개방형 상처에 방사성물질이 오염된 경우 외부피폭 뿐만 아니라 상처를 통한 방사성물질의 인체 내 유입으로 내부피폭이 유발됩니다. 이와 관련하여 핵종(60Co, 131I 및 137Cs)에 따른 외부피폭 및 내부피폭선량평가 결과를 바탕으로 방사선비상 시 적절한 피부제염완료기준을 제안하였습니다.
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