引言由于诸如人员长期培训计划、放射防护努力和人群剂量计算等种种原因,更准确地估计当前和未来从事职业电离辐射工作(“放射工作者”)的人数和放射防护专家(“保健物理学家”)的人数,不仅仅具有纯学术的意义。遗憾的是,因为商业秘密、政府政策或军事安全,和不同国家对“放 Introduction Because of various reasons, such as long-term training programs for personnel, radiation protection efforts, and population dose calculations, we can more accurately estimate the number of current and future occupational exposure work (“radiologists”) and radiation protection experts (“health physicists” The number of people in ") does not only have purely academic significance. Unfortunately, because of trade secrets, government policies or military security, and different countries