Assessment of Radiation Hazards and Identification of The Radioactive Minerals and the Associated Rare Metals of Some Albite Granites, Eastern Desert, Egypt.

Abstract

The main target of this study is the assessment of the radiation hazards for 33 represented samples collected from rare metals albite granite from four areas Abu Rusheid, Abu Dabbab, Nuweibi and Um Naggat areas in the Eastern Desert, Egypt. That enriched with economic rare-metals; Sn-Nb-Ta. These rare metals are important for manufactures of electronics like mobile phone, laptop computers, digital camera as well as automotive and medical electronic equipment. The sample locations, collection methods and preparation procedures have been discussed. Thirty-three samples of albite granite were collected from different four areas: 9 samples from Abu Rusheid area, 8 samples from Um Naggat area, 9 samples from Nuweibi area and 7 samples from Abu Dabbab area. The concentration of the terrestrial radionuclides is measured in all the studied samples to estimate the specific radioactivity of 238U-series, 232Th-series and 40K by using a high resolution hyper pure germanium (HPGe) gamma ray spectrometer. The analysis of data is completed by using a computerized analyzer fitted with a high multichannel analyzer with high level software programs. The radionuclide concentrations in the different samples are compared with the world-wide average reported in the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), this comparison is of scientific interest to health physics. Estimation the values of the radon emanation coefficient of the rocks at these areas, have been also accomplished.