Comparative Assessment of the Absorbed Doses Resulted from Occupational Exposure and Computed Tomography

A comparative assessment of the absorbed doses resulted from computed tomography (CT) examinations, and dose occupational external gamma exposure “Mayak” workers was carried out. The patients’ diagnostic radiation reconstructed using Monte-Carlo simulation on a population 58 virtual adult phantoms across 13 CT protocol categories. Archival records examinations patients were used for reconstruction. Information technical parameters scanning extracted DICOM files. study sample has been linked to Mayak worker register database identify persons who had professional contact with ionizing radiation. Annual obtained Dose-2013 dosimetry system. In this study, information 212 collected 303 records. Among them, 42 employees identified, including 24 non-zero radiation, 16 internal alpha due intake 239Pu. Individual in organs activities compared. results showed significant variability organ depending area examination. brain lens subjected highest during head CT. average 24.5 mGy per single examination (the maximum accumulated over entire period 82.3 mGy), 27.7 eye reached 92.9 mGy). Relevant comparison exposure, one year, performed. estimate cumulative an order magnitude lower than personnel, except dose. equivalent 2.82.