Key points of protection solutions for nuclear medicine departments
Release time:
2025-03-20
The use of radioactive isotopes in nuclear medicine involves radiation safety requirements, and the medical process design process is relatively complex, with strict requirements for zoning and flow lines.
The use of radioactive isotopes in nuclear medicine involves radiation safety requirements, and the medical process design process is relatively complex, with strict requirements for zoning and flow lines.
According to the standards of "Radiation Protection Requirements for Nuclear Medicine" (GBZ 120-2020) and "Radiation Protection and Safety Requirements for Nuclear Medicine" (HJ 1188-2021), when selecting a nuclear medicine site within a medical institution, full consideration should be given to the safety of the surrounding areas. It should not be adjacent to departments such as obstetrics, pediatrics, and canteens, and should be arranged relatively independently or centrally as much as possible. It is advisable to have separate entrances and exits, and exits should not be located in densely populated areas such as outpatient halls and toll booths.
According to the Basic Standards for Protection against Ionizing Radiation and Safety of Radiation Sources (GB 18871-2002), radioactive workplaces are divided into control areas and supervision areas. The "Requirements for Radiation Protection in Nuclear Medicine" (GBZ 120-2020) and the "Requirements for Radiation Protection and Safety in Nuclear Medicine" (HJ 1188-2021) both provide regulations for control areas and supervision areas.
According to the "Requirements for Radiological Protection in Nuclear Medicine" and the "Requirements for Radiological Protection and Safety in Nuclear Medicine", in order to reduce the contamination of radiation inside the department, it is necessary to classify the rooms of the department according to their radiation activity when combining them, so as to separate clean and dirty areas
Design appropriate radiation shielding for rooms in high activity areas, such as using radiation protection panels, concrete, lead glass and other materials to protect walls, doors and windows, in order to reduce radiation levels.
Install an independent ventilation system to ensure air circulation and reduce the accumulation and cross contamination of radioactive aerosols. The fume hood for synthesizing and manipulating radioactive drugs should be equipped with activated carbon or other specialized high-efficiency filtration devices to prevent the diffusion of radioactive substances into the environment.
Clear radioactive warning signs should be installed at the entrance and high activity areas of the nuclear medicine department workplace to remind staff and visitors to pay attention to radiation protection.
Medical polymer nano radiation shielding plate material, made of added metals and metal oxides, metal salts, and UV coatings. Can be used for walls, floors, and ceilings in radiation facilities such as hospital radiology, nuclear medicine, tumor treatment centers, interventional operating rooms, industrial testing, and nuclear power plants.
Establish specialized storage rooms for radioactive solid waste and radioactive waste decay pools to ensure separate collection and storage of radioactive waste for decay. The basic ways of radioactive waste disposal can be divided into:
Centralized discharge and storage to isolate waste from the environment;
Place decay to provide sufficient time for the decay of radioactive waste without causing environmental or personnel hazards;
Process emissions, reduce the radioactive level of waste to below the standard value through professional equipment treatment, and discharge it after passing monitoring.
The decay pool adopts a stainless steel finished water tank as the collection tank, which is also designed using the principle of middle layer. Intelligent control is achieved through computer monitoring, which can monitor parameters such as flow rate, water level, and various pollution indicators, and implement intelligent management with real-time alarm functions.
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