Airborne Radon-222 Measurement by Active Sampling with Charcoal Adsorption and Gamma-Ray Spectrometry

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A simple method for measuring radon concentration in air is presented. Airborne radon is adsorbed in a charcoal bed by an active air sampling. In time, the adsorbed radon comes to attain radioactive equilibrium with its short-lived progeny <SUP>214</SUP>Pb. Utilizing this fact, radon concentration is derived from γ-ray measurement of <SUP>214</SUP>Pb. This method is estimated to be capable of detecting radon concentration in air down to 0.79Bq•m<SUP>-3</SUP>. The adsorption coefficient obtained with the method is compared with what is obtainable with passive sampling. Applications of this method to indoor and outdoor radon measurements are described.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 35(10), 728-732, 1998-10-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002080224
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4587916
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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