不同能量与射束下含铅、铋、钐辐射防护材料的铅当量测试与屏蔽防护特性  

Discussion on the lead equivalent measurement and attenuation characteristics of radiation protection materials containing lead,bismuth and samarium at different energies and beam

作　　者：袁杰[1] 胡崇庆 白雪[1] 孙训[1] Yuan Jie;Hu Chongqing;Bai Xue;Sun Xun(Shanghai Institute of Measurement and Testing Technology)

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2023年第2期40-42,46,共4页Shanghai Measurement and Testing

摘　　要：辐射防护材料的屏蔽性能通常用铅当量表示。参照IEC 61331-1-2014以及YY/T 0292.1-2020规定的铅当量测量方法,分别用30~400 k V X射线测量7种不同的主要含有铅、铋、钐材料的铅当量,分析总结其在窄射束和逆宽射束条件下,铅当量随射线能量的变化规律,得出非铅防护材料实际应用的效果。The shielding performance of radiation protection materials is usually expressed in lead equivalent.Refer to IEC 61331-1-2014 and YY/T 0292.1-2020 method stipulated in “Determination”,respectively use 30-400 kV X-radiation to experimentally measure the lead equivalent of 7 different materials mainly containing lead,bismuth and samarium,and analyze and summarize their results in narrow beam and inverse broad beam.Under certain conditions,the lead equivalent varies with the radiation energy,and the effect of the practical application of non-lead protective materials can be obtained.

关 键 词：铅当量 X射线 铋材料 钐材料 屏蔽性能 

分 类 号：TB302.5[一般工业技术—材料科学与工程]