The problems of radiation hazard of nuclear medical facilities taking into account all stages of the life cycle are Considered. Substantiates the important role of the concrete biological shielding to ensure radiation and environmental safety of staff, patients, the public and the environment. The necessity of optimization of a choice of concrete biological shielding for radiation parameters. To justify the need and the possibility of optimizing the choice of the concrete biological shield, the results of computational studies of the activation characteristics of the three formulations of protective concrete, widely used for the construction of the canyons biological shielding of medical cyclotrons. The possibility of reducing the volumes of radioactive waste and their categories at the decommissioning stage is shown, which will ensure the reduction of financial costs for the disposal of radioactive waste during biological shielding dismantling. Scheduled tasks for further research.

Keywords: nuclear medicine, cyclotron, shielding concrete, induced activity, chemical composition, optimization, radioactive waste, life cycle, decommissioning