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The Closed-Can Exhalation Method for Measuring Radon
Results from closed-can radon exhalation experiments must be interpreted bearing the time-dependent radon diffusion theory in mind. A rapid change from the free to final steady-state exhalation rate will take place for all samples that are thin compared with the radon diffusion length. The radon gas...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
1990
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4930043/ https://www.ncbi.nlm.nih.gov/pubmed/28179770 http://dx.doi.org/10.6028/jres.095.019 |
| Sumario: | Results from closed-can radon exhalation experiments must be interpreted bearing the time-dependent radon diffusion theory in mind. A rapid change from the free to final steady-state exhalation rate will take place for all samples that are thin compared with the radon diffusion length. The radon gas accumulating in a closed can corresponds to a free exhalation rate only if the outer volume of air is much larger than the pore volume of the enclosed sample, or the thickness of the sample is much larger than the radon diffusion length. |
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