International Research Journal of Pure and Applied Physics (IRJPAP)

EA Journals

Evaluation of Natural Radioactivity Levels for Local and Import of Cement in Iraq


Cement samples were collected from Iraq market. Radioactivity was measured using (NaI)Tl detector, specific activity levels due to 226Ra, 232Th and 40K were measured in 11 cement samples. The average activity concentration Bq/Kg in the collected cement samples were found the range from (17.027±4.609) to (95.436±5.565) Bq/Kg with an average value of (40.49391±3.09627) Bq/Kg for226Ra, 232Th specific activities range from (2.303 ±0.319) to (8.8159±0.366) Bq/Kg with an average of (4.79±0.3455) Bq/Kg and 40K specific activity range from (84.135±5.387) to (389.436±8.364) Bq/Kg with an average value of (275.8±5.763) Bq/Kg . The average value of the radium equivalent was found (68.21907) Bg/Kg, while the average value of the absorbed dose in air, external hazard index and internal hazard index were found (32.9866) nGy/h, (0.2937) and (0.184298) respectively. Also in this study compared of results with international recommended values and found to be with in the international level

Keywords: Cement In Iraq, Radiation Hazard Indices And Gamma Spectroscopy, Radioactivity

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