Measurement of Urinary Radioactivities for the Workers in Nuclear Medicine

The workers treating in nuclear medicine is likely be internally exposed by particles, inert gas, and vapor regarding radioisotopes. Since the worker for the facilities can be inhaled in the contaminated air, Bioassay method, such as urine, can be a useful tool to assess the internal dose for the workers. Table 1 shows RI nuclides can contaminate the facility and the workers. Physical data and dose coefficient of the RIs are also shown in table 1. According to dose coefficient, I-131 is severe nuclide for workers. Urinary measurement for the workers was performed. The methods and results of the urinary measurement will be described in this KNS conference