RESUMO
Background: The aim of the study was to analyze the effective dose record of occupationally exposed radiation workers at Bahawalpur Institute of Nuclear Medicine and Oncology department. Materials and Methods: Annual effective doses of occupationally exposed workers were measured by film badge dosimetry by sending the dosimeters to Radiation Dosimetry Laboratory [RDL], Pakistan Institute of Nuclear Science and Technology [PINSTECH], Islamabad, Pakistan. 46 Radiation workers dose records were studied for a period of 14-years [2000-13]. Professionally exposed radiation workers were divided into groups depending upon their professions. Results: Average effective doses of oncologists, nuclear physicians, medical physicists, radiation technologists, nurses and other supporting staff were in the range of 0.64-1.86, 0.61-2.27, 0.63-1.74, 0.67-2.53, 0.65-2.31 and 0.68-1.79 mSv respectively. The highest annual dose received by radiation technologist was 4.95 mSv. Nobody received the radiation dose greater than 5 mSv in any year and no overexposure case has been noticed throughout the study period. Conclusion: The results revealed that occupationally exposed individuals received doses lower than the recommended annual limits of 20 mSv y[-1]. This study provides basis to set up action level that is obligatory by Pakistan Nuclear Regulatory Authority, Pakistan