広島県東部地区の自然環境ガンマ線による空気カーマ率の測定(I) -芦田川水系を中心として- Measurements of Air Kerma Rates by Natural Environmental Gamma Rays in the Eastern Part of Hiroshima Prefecture(I) -In the Basin of the Ashida River-

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Air kerma rates in the basin of the Ashida River of Hiroshima Prefecture were measured by a NaI (Tl) scintillation spectrometer. It was found that they were distributed from 5.4×10<sup>1</sup>nGy h<sup>-1</sup> to 1.2×10<sup>2</sup>nGy h<sup>-1</sup> and had a mean value of (7.9±1.8)×10<sup>1</sup>nGy h<sup>-1</sup>, which was about 30% higher than the air-absorbed dose rates determined by the National Institute of Radiological Science. It also became clear from a comparison of gamma-ray spectra measured there that two kinds of parent rocks whose components of radionuclides were very much different from each other would be the sources of the gamma ray exposure in this area.

収録刊行物

  • 保健物理 : hoken buturi  

    保健物理 : hoken buturi 33(4), 429-434, 1998-12-01 

    Japan Health Physics Society

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各種コード

  • NII論文ID(NAID)
    10002137520
  • NII書誌ID(NCID)
    AN00228458
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03676110
  • NDL 記事登録ID
    108520
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業) // ZS45(科学技術--医学--放射線医学)
  • NDL 請求記号
    Z16-696
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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