放射防护体系的三原则是放射防护基本原则,高度概括了行之有效的方法。医疗照射实践的正当性关系到公众所受照射剂量和人群的生物效应发生率;放射防护最优化,可以从三个方面考虑,即设备要求,操作要求和医疗照射的质量保证;保证任何个人所接受的所有辐射照射引起的照射剂量控制在相应的国家规定的限值范围内。 The three principles of the radiological protection system are the basic principles of radiological protection and give a high-level overview of proven methods. The legitimacy of medical exposure relates to the incidence of public exposure to radiation and the incidence of biological effects in the population. Optimizing radiological protection can be considered in three aspects: equipment requirements, operational requirements and quality assurance of medical exposure; All exposure to radiation irradiation caused by the radiation dose is controlled within the limits of the corresponding national regulations.