CONSEQUENCES OF USING HOME-MADE RADON SOURCES FOR MEASURING THE RADON DIFFUSION COEFFICIENT
| Autor: | Martin Jiránek, T Dobrovolný |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Radiation
Radiological and Ultrasound Technology Construction Materials Public Health Environmental and Occupational Health chemistry.chemical_element Radon Soil science General Medicine 030218 nuclear medicine & medical imaging Radium 03 medical and health sciences Radon diffusion 0302 clinical medicine chemistry Air Pollutants Radioactive Radiation Monitoring 030220 oncology & carcinogenesis Air Pollution Indoor Environmental science Radiology Nuclear Medicine and imaging Production rate |
| Zdroj: | Radiation protection dosimetry. 177(1-2) |
| ISSN: | 1742-3406 |
| Popis: | The applicability of home-made radon sources for determining the radon diffusion coefficient of waterproofing materials was studied for three representatives of materials with a high radium content: uraninite, slag concrete and filter sand. The results of our investigation confirmed that the radon production rate of home-made radon sources is significantly lower than the radon production rate of artificial sources. Consequently, home-made sources are usually unable to generate concentrations higher than 100 kBq/m3 in the source container. Therefore, they cannot be used for determining radon diffusion coefficients lower than 1 × 10-12 m2/s. In addition, when home-made radon sources are used, only time-dependent mathematical solutions of the non-stationary radon diffusion can be used for determining the radon diffusion coefficient from the measured data. |
| Databáze: | OpenAIRE |
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