Highly Time-Resolved Measurements of Airborne Radionuclides by Extremely Low Background γ-ray Spectrometry : Their Variations by Typical Meteorological Events

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著者

    • ABE Takuya
    • Low Level Radioactivity Laboratory, K-INET, Kanazawa University
    • TANAKA Kiwamu
    • Low Level Radioactivity Laboratory, K-INET, Kanazawa University
    • NAKANO Yusuke
    • Low Level Radioactivity Laboratory, K-INET, Kanazawa University

抄録

In order to investigate variation of concentrations of airborne radionuclides, <SUP>214</SUP>Pb, <SUP>212</SUP>Pb, <SUP>7</SUP>Be, and <SUP>210</SUP>Pb, accompanied with a typical meteorological event, such as passage of cold front, approach of typhoon, and Asian dust (Kosa), highly time-resolved (2-6 hours) measurements of natural radionuclides were performed by ultra low background γ-ray spectrometry. Surface air concentrations of these nuclides showed characteristic temporal changes by each meteorological phenomenon. In addition, variation patterns were found to be obviously different between short-lived <SUP>214</SUP>Pb and <SUP>212</SUP>Pb and long-lived <SUP>7</SUP>Be and <SUP>210</SUP>Pb. One of causes of the difference might be explained by difference of their sources: local for short-lived nuclides and regional for long-lived ones.

収録刊行物

  • Journal of Nuclear and Radiochemical Sciences

    Journal of Nuclear and Radiochemical Sciences 8(1), 5-9, 2007-06-01

    The Japan Society of Nuclear and Radiochemical Sciences

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各種コード

  • NII論文ID(NAID)
    10021101584
  • NII書誌ID(NCID)
    AA11948402
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13454749
  • データ提供元
    CJP書誌  J-STAGE 
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