シビアアクシデント時従業員被ばく線量評価手法の検討 Design Study on Dose Evaluation Method for Employees at Severe Accident

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抄録

If a severe accident occurs in a pressurized water reactor plant, it is required to estimate dose values of operators engaged in emergency activities such as accident management, repair of failed parts. However, it might be difficult to measure radiation dose rate during the progress of an accident, because radiation monitors are not always installed in areas where the emergency activities are required.<BR>In this study, we analyzed the transport of radioactive materials in case of a severe accident, investigated a method to obtain radiation dose rate in the plant from estimated radioactive sources, made up a prototype analyzing system from this design study, and then evaluated its availability. As a result, we obtained the following: (1) A new dose evaluation method was established to predict the radiation dose rate at any point in the plant during a severe accident scenario. (2) This evaluation of total dose including access route and time for emergency activities is useful for estimating radiation dose limit for these employee actions. (3) The radiation dose rate map is effective for identifying high radiation areas and for choosing a route with lower radiation dose rate.

収録刊行物

  • 日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan

    日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan 1(2), 191-201, 2002-06-25

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10008836183
  • NII書誌ID(NCID)
    AA11643165
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    13472879
  • NDL 記事登録ID
    6210459
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業)
  • NDL 請求記号
    Z74-C788
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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