A method for the determination of 222Rn flux from soil to atmosphere

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• 作者：Delcy de Azevedo Py Jr.…
• 关键词：Radon ; Accumulator ; 222Rn exhalation
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：307
• 期：1
• 页码：821-827
• 全文大小：578 KB
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• 作者单位：Delcy de Azevedo Py Jr. (1)
  Marcelino Vicente de Almeida Dantas (1)
  Rafael Zafalon (1)
  
  1. Caldas Unit, Brazilian Nuclear Industries, INB, Estrada Poços Andradas, Km 20,6, Caldas, Minas Gerais, 37 701 970, Brazil
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780

文摘

An accumulator and a portable electronic monitor were used for determinations of 222Rn flux exhalation from soil to atmosphere. This work describes a method of fitting the function that represents 222Rn concentration variation in the accumulator to experimental data, and tries to answer the practical questions of temperature, leakage and soil disturbance, that may influence 222Rn flux determinations. It is observed a deviation equal to 0.2 %, between the determined counting rate conversion factor of the monitor and the catalog reported factor, showing that the proposed method has a good accuracy. The smallest 222Rn flux that can be determined by this method is equal to 3.24 × 10−3 Bq m−2 s−1. These results encourage the use of this method to measure 222Rn flux from soil to atmosphere in other different places.