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Determination uranium concentration of teeth in Al-Samawa city using the CR-39nuclear track detector

A B S T R A C TArticle history:Received:16JUN, 2021Revised: 18 JUL, 2021Accepted:1 AUG, 2021Available Online:12JUN, 2022In this research, The uranium concentration in teeth samples were measured using a CR-39 track detector and the fission tracks registration method., for 25 samples of teeth distributed across Samawa City, each weighing (0.7) grams and (2) mm in thickness. Exposed done after preparing the samples into small spherical pellets covered with a 1x1cm2CR-39 detector . These samples with detectors together were irradiated using an (241Am-Be) source with a neutron flux (5×103 n.cm-2.s-1) for one week. These samples were compared with standard samples to find uranium concentration. The results show that the maximum value of uranium concentration was (2.273 ppm) and value of a minimum uranium concentration was (0.626 ppm) and the concentration of uranium in females was higher than in males, the concentration of uranium were affected by several factors: the region of study , gender and age of the human.

https://journal.uokufa.edu.iq/index.php/jkp/article/view/10196/9757

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