Determination of the activity concentration of radionuclide for human tissue (Healthy & Cancer) samples

Abstract

Author(s): Alaa Ghazi Sadoon, Maytham A. Al-Shanawa*, Maher J. Salih and Haider A. Ali

This study included measuring the mass radioactivity of uranium, thorium, and potassium in human tissue samples (healthy and carcinogenic) using gamma-ray spectrometer SAM940TM. A comparison was made between healthy and infected tissues, and large differences were found between them in terms of mass radioactivity. Twenty biological samples were collected from the governorates of Basra and Thi-Qar. These samples included (healthy and carcinogenic human tissues) from the human body and for the same organ (kidney, colon, and breast). This study showed that the highest value of mass radioactive activity of uranium is 97.73 Bq/Kg, while the activity of thorium was observed to be 256 Bq/Kg. It was close to the activity of healthy tissues, 2.15 Bq/Kg. As for the thorium-232 isotope, we note that the mass activity of the isotope for healthy and infected tissues is almost identical to the activity at the range of 42.78 Bq/Kg, which represents the black curve for healthy samples and the red curve for infected samples. Radon-226 isotope, it was noticed that there is a difference in radioactivity between healthy and infected samples, as the radioactivity of infected samples is greater than the activity of healthy samples, the low curved black color represents the activity of healthy samples, and the high curved red color represents the activity of infected samples, the highest value was 22 Bq/g. It also included a study of the activity of other elements present in biological samples, including (cadmium Cd-109, barium Ba-133, Cobalt Co-60, Bismuth Bi-207, Arsenic As-72 and Sodium Na-22).

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