الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Some geological rocks are characterized by higher concentrations of radionuclides. As a result of the development of human activities to exploit these natural resources, the concentrations of these radionuclides, which are often referred to as the new technology for increasing radioactive materials, may increase. Therefore, if they are not properly managed or treated, they will result in high doses of radiation and alteration of the radiation background of the selected locations. This risk can be avoided if the normal radiation activity of these places is studied carefully and know the radiation background to them and study the factors that can infect the workers carefully and the application of preventive programs necessary for them and avoid those risks while taking advantage of the economic importance of the high concentrations of radioactive materials those places. The area of Abu Rusheid, southeast of the Eastern Desert, contains high concentrations of radioactive materials, so the role of nuclear materials in relation to its national role in the extraction of radioactive materials to provide the needs of the State of those materials in order to assume the role of nuclear fuel in the future. The main objective of this study was to prepare a detailed study of the radiation properties in 27 selected samples from the studied area and to determine the concentrations of Uranium-238, Abstract Abstract xxii Radium-226, Thorium-232 and Potassium-40 using gamma spectroscopy for these different samples to calculate the risk of cancer and the average dose, Annual activity, radium equivalent activity, internal and external risk factor, and calculation of the radon exhalation rate using the nuclear track detector (CR-39). As well as study the behavior of radon concentration with depth to be used to know the thickness of the layer carrying radionuclides to estimate the size of ore body under the ground. To achieve this, radiation tests were performed using a gamma spectrometer NaI(Tl). Radiation risk factors were calculated. Nuclear track detectors were also used in the closed chamber experiment to calculate the radon exhalation rate, as well as the design of a 62 cm plastic tube with reagents installed at different altitudes 5, 10, 15, 20, 25, 30, 35, 40, 45 and 50 cm) to study the behavior of radon gas with depth to determine radioactive anomaly thickness. And finally the rare and trace earth elements were analyzed to study the geochemical behavior of the area under study. The results were presented using the gamma spectrometer for Uranium-238, Radium-226, Thorium-232 and Potassium-40 in the samples selected, which were higher than the UNSCEAR, 2000 average of 35, 32, 45 and 420 Bqkg-1 for Uranium-238, Radium-226, Thorium-232 and Potassium-40, respectively. The Abstract xxiii average absorbed dose, radium equivalent activity, internal and external risk factor for all samples under study were also calculated and found to be higher than global averages. For the results obtained from the calculation of the radon exhalation rate using the CR-39, it was observed that the levels of the radon exhalation rate for the selected samples were greater than the global average permitted for use as building materials. The results of the behavior of the Radon gas concentration with depth were also presented and used to determine the dimension and thickness of the radiated mineralization class and it is plotted using the Main Set program to evaluate the size and can be used to make the drilling decision without expensive procedures based on the best places for drilling and the lowest cost. After the presentation of the results, the study concluded that some preventive measures should be taken to reduce the risk of cancer for workers in the field of radioactive material extraction, and the prevention operations should be supervised by qualified protection experts. The study also suggested that the area under study could be used as a mining area for the extraction of radioactive materials, and procedures were introduced to facilitate the decision to drill in the study area.