Authors: Hayam Ahmed Abdel Ghany
Addresses: Physics Department, College of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
Abstract: Oil and gas production processing operations have been known to involve naturally occurring radioactive materials that lead to internal and external radiation hazards and thus a significant radiation dose to the workers. In this work, samples of nine oil lubricants used on a daily basis were collected from local suppliers in Egypt and analysed to determine their natural radioactivity. The activity concentrations of the radionuclides were measured using a coaxial Hyper Pure Germanium (HPGe) detector system, and derived doses were evaluated. The average activity concentrations obtained were 0.57 ± 0.04, 2.33 ± 0.39 and 5.44 ± 0.27 Bq kg−1 for 238U, 232Th and 40K, respectively. The absorbed doses were very low ranging from 0.57 to 4.20 nGy h−1.
Keywords: natural radioactivity; oil lubricants; absorbed dose; low radiation; radioactive materials; radiation exposure; Egypt; radionuclides.
International Journal of Low Radiation, 2011 Vol.8 No.3, pp.232 - 240
Available online: 22 Mar 2012 *Full-text access for editors Access for subscribers Purchase this article Comment on this article