The radiation protection of staff is of concern when PET (positron emission tomography)

imaging is applied. Several sites of handling radionuclides during synthesis of radiopharmaceuticals, preparation of vials and syringes, injecting patients and setting them up for imaging require awareness, protective actions and monitoring to minimize staff exposure. This project was designed to collect accurate data on doses of the staff in a PETcentre, to identify sites in work processes where additional protective actions or changes of work habits are needed. The staff members of a major PET centre in Finland are involved in the synthesis of 18F, 11C and 68Ga labelled tracemolecules, preparation of syringes injecting and setting up the patients. Within this project they are monitored for eye lens, finger and whole body exposure more thoroughly than with routine radiation dose monitoring, The dosimeters are prepared, calibrated and evaluated at the Federal Office for Radiation Protection (BfS), Germany.Work task and site specific data will be collected for analyses of staff exposure. Staff education and training will be tailored on the basis of this information to improve the radiationprotection and minimize the exposure as necessary.