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Journal of Radioanalytical and Nuclear Chemistry

, Volume 295, Issue 3, pp 2295–2299 | Cite as

Measurement of the radon exhalation rate from the medium surface by tracing the radon concentration

  • Yanliang Tan
  • Detao Xiao
Article

Abstract

The paper will present a method based on the accumulation chamber technique for measuring of radon exhalation from the medium surface. A radon monitor traces the change of radon concentration in the accumulation chamber, and then the radon exhalation can be obtained accurately through linear fit. Based on our recent experiments, the radon exhalation rate from the medium surface obtained from this method is in good agreement with the actual exhalation rate of our simulation facility. This method is superior to the competition method which obtains the radon exhalation through the exponential fit by an external PC-system. The calculation for the exponential fit is very easy by computer and related software. However, for portable instruments, the single chip microcomputer can’t calculate the exponential fit rapidly. Thus, this method is usable for developing the new portable instrument to classify building materials, etc.

Keywords

Radon exhalation rate Accumulation chamber Tracing the change of radon concentration Linear fit 

Notes

Acknowledgments

Project supported by the National Natural Science Foundation of China (Grant No. 11075049), the Excellent Talents Program of Hengyang Normal University of China, the construct program of the key in Hunan province and the Science Foundation of Hengyang Normal University of China. The authors appreciate Mr. Chris Young and Mrs Stephany Moser for providing the language editing service.

References

  1. 1.
    Haque AK, Al-Affan IA (1988) Main factors affecting the calculation of radiation dose to the lung from inhalation of radon daughters. Sci Total Environ 74:279–289CrossRefGoogle Scholar
  2. 2.
    Angell WJ (2011) Indoor radon prevention and mitigation. In: Nriagu JO (ed) Encyclopedia of environmental health. Elsevier, Amsterdam, pp 208–217Google Scholar
  3. 3.
    Espinosa G, Golzarri JI, Vega-Orihuela E, Morales-Malacara JB (2012) Indoor radon concentration levels in Mexican caves, using nuclear track methodology, and the relationship with living habits of the bats. J Radioanal Nucl Chem. doi: 10.1007/s10967-012-1975-8
  4. 4.
    Musavi Nasab SM, Negarestani A, Mohammadi S (2011) Modeling of the radon exhalation from water to air by a hybrid electrical circuit for modeling the radon exhalation from water to that the volume of water or air. J Radioanal Nucl Chem 288(3):813–818CrossRefGoogle Scholar
  5. 5.
    Verma D, Khan MS, Zubair M (2012) Assessment of effective radium content and radon exhalation rates in soil samples. J Radioanal Nucl Chem. doi: 10.1007/s10967-012-1694-1
  6. 6.
    Zhang L, Lei X, Guo Q, Wang S, Ma X, Shi Z (2012) Accurate measurement of the radon exhalation rate of building materials using the closed chamber method. J Radiol Prot 32:315–323CrossRefGoogle Scholar
  7. 7.
    Chen J, Schroth E, MacKinlay E, Fife I, Sorimachi A, Tokonami S (2009) Simultaneous 222Rn and 220Rn measurements in Winnipeg, Canada. Radiat Prot Dosim 134(2):75–78CrossRefGoogle Scholar
  8. 8.
    Ujić P, Čeliković I, Kandić A, Žunić Z (2008) Standardization and difficulties of the thoron exhalation rate measurements using an accumulation chamber. Radiat Meas 43:1396–1401CrossRefGoogle Scholar
  9. 9.
    Van Deynse A, Cosma C, Poffijn A (1999) A passive radon dosimeter based on the combination of a track etch detector and activated charcoal. Radiat Meas 31:325–330CrossRefGoogle Scholar
  10. 10.
    Saegusa J, Yamasaki K, Tsujimoto T (1996) Development of an apparatus for measuring ground exhalation rates of 222Rn and 220Rn. Environ Int 22:483–490CrossRefGoogle Scholar
  11. 11.
    Tetsuo I, Atsuyuki S, Shinji T, Shigeo U (2011) Development and application of a continuous measurement system for radon exhalation rate. Rev Sci Instrum 82:015101CrossRefGoogle Scholar
  12. 12.
    Guo Q, Sun K, Cheng J (2004) Methodology study on evaluation of radon flux from soil in China. Radiat Prot Dosim 112(2):291–296CrossRefGoogle Scholar
  13. 13.
    Tan Y, Xiao D (2011) Revision for measuring the radon exhalation rate from the medium surface. IEEE Trans Nucl Sci 58:209–213CrossRefGoogle Scholar
  14. 14.
    Tan Y, Xiao D (2011) A novel algorithm for quick and continuous tracing the change of radon concentration in environment. Rev Sci Instrum 82(4):043503–043504CrossRefGoogle Scholar
  15. 15.
    Katori S, Iwasaki J, Maehashi Y (1982) An 8-bit single-chip microcomputer for automotive engine control. Microprocess Microsyst 6(7):347–353CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2012

Authors and Affiliations

  1. 1.Department of Physics and ElectronicsHengyang Normal UniversityHengyangChina
  2. 2.School of Nuclear Science & TechnologyUniversity of South ChinaHengyangChina

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