【摘要】 辐射屏蔽材料开发是辐射防护研究的重要部分。非铅有机复合屏蔽材料有着强度高、易加工、重量轻等优点，是辐射屏蔽领域发展的热点。本文综述了非铅有机复合屏蔽材料的研究现状；总结了其制备流程与评价标准；使用蒙特卡罗方法比较了不同屏蔽材料在诊断能谱下的屏蔽能力；采用线性拟合方法分析了其添加物的种类、粒径大小、管电压等条件对屏蔽能力的影响。更多还原

【Abstract】 The development of radiation shielding materials is an important part of radiation protection research. Lead-free organic composite shielding materials have the advantages of high strength, easy processing and light weight. With the research status reviewed, and the preparation process and evaluation criteria summarized, we compared the shielding ability of different materials under diagnostic energy spectrum with Monte Carlo method, and analyzed effects of additive type, particle size and tube voltage on shielding capability via linear fitting.更多还原