DESIGN CONSIDERATIONS TO MINIMIZE STAFF DOSES IN NUCLEAR MEDICINE UNITS

Purpose: The aim of this study was to required to achieve the principle ALARA, to reduce the radiation exposure to workers in the field of the radioactivity medical as much as possible to minimize staff doses, and become familiar with the types of sources used in diagnostics and radiation therapy. And become aware of how the basic principles of defense in depth, safety of sources and optimization are applied to the design of diagnostics and radiation therapy facility. Methods: pursuant to paragraph the Radiation Protection the Regulations, GD-52: Design Guide for Nuclear Substance Laboratories and Nuclear Medicine Rooms. It includes guidance on finishing and, plumbing, storage, security, ventilation, shielding, and dose estimation for basic, intermediate, high, and containment level nuclear substance laboratories and nuclear medicine rooms. Results: This paper document provides information for a recommended approach for meeting the requirements related to site description and room design the Nuclear Substances and Radiation Devices Regulations and performing shielding design analysis as a component of keeping doses As Low As Reasonably Achievable (ALARA). Conclusion: Therefore Medical facilities require extensive internal shielding to adequately protect occupationally exposed workers. Adequate structural shielding is needed for the PET scanner whereas the requirements are less for the CT scanner. Building materials should be used in the design of facilities that are easily decontaminated on a daily basis in all areas, where liquid radio pharmaceuticals are handled