GAMMA ACTIVITY AS A GUIDE FOR THE BUILDING RAW MATERIALS SELEC-TION AND CONTROLLING THE ENVIRONMENTAL HAZARDS
Walley El-Dine, Nadia; T. Ibrahim; Kh. Ali; A. Sroor; A. El-Shershaby; Z. El-Tayeb;
Abstract
The spectrometric measurements can provide an alarm for the radiation activity and radioelement concentrations. The activity increase over the ambient background can be achieved by well calibrated gamma-spectrometers. In com-parison between Wadi El-Dahl and Abu Zawal quarries for building raw materials (feldspar), the activity concentration of El-Dahl stream sediments are 54.5 and 44.5 Bq/kg for uranium and thorium respectively. While the activity concen-tration of Abu Zawal rock quarry are 167.03 and 79.77 Bq/kg for uranium and thorium respectively. These activities yielding effective dose rates of 0.63 mSv/y for Wadi El-Dahl stream sediments and 1.48 mSv/y for Abu Zawal rock quarry. In summary, the spectrometric measurements are excellent selective tool to monitoring the environment against the radiation risk. In this aspect, Wadi El-Dahl stream sediment quarry considered as the more suitable for pro-ducing feldspar as a raw materials to building industry. In comparison, Abu Zawal rock quarry has a higher effective dose rate exceeds the international permissible limits which is 1 mSv/y. A total of 19 feldspar samples were completely described regarding their general chemical features by using x-ray fluorescence. From the study all the samples contain high concentration of barium and rubidium which can separate using different methods in order to use in different im-portant industry.
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Title | GAMMA ACTIVITY AS A GUIDE FOR THE BUILDING RAW MATERIALS SELEC-TION AND CONTROLLING THE ENVIRONMENTAL HAZARDS | Authors | Walley El-Dine, Nadia ; T. Ibrahim ; Kh. Ali ; A. Sroor ; A. El-Shershaby ; Z. El-Tayeb | Keywords | : ground spectrometric survey, x-ray fluorescence, feldspar | Issue Date | 2012 | Publisher | ISSN 1818-331X NUCLEAR PHYSICS AND ATOMIC ENERGY | Journal | Journal "Nuclear Physics and Atomic Energy" 2012 T. 13 N.2 |
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