Environmental Monitoring and Assessment

, Volume 185, Issue 10, pp 8759–8765

Measuring radon exhalation rate in two cycles avoiding the effects of back-diffusion and chamber leakage

Article

DOI: 10.1007/s10661-013-3210-7

Cite this article as:
Tan, Y. & Xiao, D. Environ Monit Assess (2013) 185: 8759. doi:10.1007/s10661-013-3210-7

Abstract

This paper will present a simple method for measuring the radon exhalation rate from the medium surface in two cycles and also avoiding the effects of back-diffusion and chamber leakage. The method is based on a combination of the “accumulation chamber” technique and a radon monitor. The radon monitor performs the measurement of the radon concentration inside the accumulation chamber, and then the radon exhalation rate can be obtained by simple calculation. For reducing the systematic error and the statistical uncertainty, too short of total measurement time is not appropriate, and the first cycle time should be about 70 % of the total measurement. The radon exhalation rate from the medium surface obtained through this method is in good agreement with the reference value. This simple method can be applied to develop and improve the instruments for measuring radon exhalation rate.

Keywords

Radon exhalation rate Two cycles Back-diffusion Leakage 

Copyright information

© Springer Science+Business Media Dordrecht 2013

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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