Determination of Uranium Concentration In Female an‎d Male Children s Teeth Samples Using Fission Tracks In CR-39 From Different Countries.

The aim of this work is to measure the uranium concentration in male and female children s teeth samples collected from different countries.The uranium concentration in teeth samples were measured by using CR-39 track detector. The nuclear reaction is used as a source of nuclear fission fragments is (n ,f) obtained by the bombardment of 235 U with thermal neutrons with flux (5000 n cm-2s-1 ) from (Am-Be) neutron source. The concentration values were calculated by a comparison with standard samples was which prepared. The obtained results show that the concentration is ranging from (0.3204±0.06 ppm) in Oman for female to (0.1965±0.04 ppm) in UAE for male, the uranium concentration was the highest in Oman for female.