ABSTRACT

Both radon and radium concentrations, radon exhalation rate in terms of area and mass, as well as the annual effective doses were measured in rock samples in Al-Qusair area, Egypt. In the present work, the can technique, containing CR-39 solid-state detector, was used to estimate the radium concentration and radon exhalation rates from different studied samples. The results of the study have revealed that the values obtained for the studied samples are within the internationally accepted recommended values. Finally, it can be concluded, from the obtained results that these samples from Al-Qusair area may be used as safe sources in manufacturing the building materials.

摘要

在埃及Al-Qusair地区的岩石样品中测量了and和镭的浓度，ra的呼出率（面积和质量）以及年度有效剂量。在目前的工作中，包含CR-39固态检测器的制罐技术被用来估计不同研究样品中的镭浓度和ra析出率。研究结果表明，所研究样品的值在国际公认的推荐值范围内。最后，从获得的结果可以得出结论，这些来自Al-Qusair地区的样品可以用作制造建筑材料的安全来源。