Medical Radiation Exposure of Various Personnel Categories at National Center of Rehabilitation and Neurosciences (NCRNS) of Rabat
Journal Title: Scholars Journal of Applied Medical Sciences - Year 2016, Vol 4, Issue 8
Abstract
Abstract: The purpose of this study is to evaluate the medical radiation exposure for personnel categories in the radiology and Gamma knife radiosurgery unit at National Center of Rehabilitation and Neurosciences (NCRNS) of Rabat. Two types of detector (Inspector and RDS-31) have been used to estimate the annual doses to categories of staff upon their exercise around equipments that produce ionizing radiation (Gamma knife Perfexion, a Scanner and a monoplane angiography). To assess the reliability of the measurements made by the detector “Inspector” we confronted these measures with those given in the same positions by the RADOS RDS-31 survey meter. The error recorded during simultaneous measurements at the same positions between the two detectors varies from 0.3 to 9%, with an average value of 5%; which allowed us to trust the measurements obtained by the detector "Inspector" placed at our disposal throughout this study.According to the evaluation of the measured dose rates, the annual doses to personnel category A of the radiology and Gamma Knife radiosurgery unit, are between 1.3×10-3 and 0.368 millisivert (mSv) per year, and vary from 1.12×10-3 to 0.154 mSv per year for category B, while for category C, these values are from 1.74×10-3 to 0.162 mSv per year. The values for doses to personnel categories around the Gamma knife treatment room, the scan room and also around the angiography room do not exceed the annual dose thresholds established by the International Commission on Radiological Protection. Following these results the personnel categories practice in the best conditions for radiation protection. Keywords:NCRNS, Personnel Category’s, Radiation Exposure, Annual Dose.
Authors and Affiliations
Mohamed AABID, Slimane SEMGHOULI, Abdelmadjid CHOUKRI, OumKeltoum HAKAM
Keywords
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