日本の表層土を用いたラドン拡散係数の測定 Measurement of Radon Diffusion Coefficients for Japanese Surface Soils

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  The radon diffusion coefficient for soil, <i>D</i>, is a very important parameter used to estimate radon dose for uranium-bearing waste. Many <i>Ds</i> were measured in the uranium mill tailing remediation action project in the US, and a formula for the estimation of diffusion coefficient, Rogers's formula, was proposed. However, it is uncertain whether Rogers's formula is applicable to Japanese soils because most of them have come from volcanic ash and contain much water. This paper describes the development of a measurement apparatus for <i>D</i> using a lump response transient method and a step response transient method, and presents measured <i>D</i> values for Japanese surface soils. Measured alpha ray count curves are good in agreement with those of theory. This shows that radon transportation in soil can be described using Fick's law. Furthermore, the measured effective <i>D</i> values are good in agreement with those of Rogers's formula. This means that Rogers's formula can be applied to Japanese soils.<br>

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  • 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 7(3), 221-230, 2008-09-01 

    Atomic Energy Society of Japan

参考文献:  23件

各種コード

  • NII論文ID(NAID)
    10021307617
  • NII書誌ID(NCID)
    AA11643165
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13472879
  • NDL 記事登録ID
    9629388
  • 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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