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Radon Standard Source in Different Countries with Different Principals |
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PP: 35-41 |
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doi:10.18576/jrna/040104
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Author(s) |
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Mostafa Y.A. Mostafa,
Atef El-Taher,
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Abstract |
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| Radon is the most important source of natural radiation exposure. The inhalation of short-lived radon progeny in ambient atmosphere is responsible on half of internal exposure and can lead to lung cancer. Therefore, the measurement of radon and radon progeny concentrations is very important for dose evaluation. Due to these facts, measurements of the activity concentration of radon and its progenies are performed worldwide either at workplaces (e.g. mines) or in dwellings. So, it is necessary to have the calibration facilities in which the activity concentration of radon and its progenies can be measured under well-defined conditions. Improving of radon metrology also is necessary for the traceability of secondary measurements of radon or radon progeny concentration in air. Unfortunately, the possibility of checking equipment is not available permanently. Therefore, there is a necessity to develop metrology approaches for measuring of the concentration of radon and radon progeny using available equipment and simple procedures to interpret the data. Each measuring method requires a suitable calibration procedures and standards for accurate measurements. |
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