Radiation Dose Impact on the Workers from the Radiopharmaceutical Facility

Some important indicators useful in the evaluation of occupational exposure to radiation were determined for the workers in a Brazilian radiopharmaceutical facility during the last three years. These indicators were analysed to identify and to correlate the main parameters that had an impact on the radiation exposure of workers. The data analysis took into account the number of monitored workers, the distribution of dose, the annual effective doses (above record levels), and the collective effective dose, the radiation monitoring at the workplace and environment. The conclusions from this paper were used to optimize the radiation protection procedures at this installation. The results obtained from the monitoring practice, over the last three years, are discussed and they are in agreement with the limits recommended by national and international regulatory authorities. (author)