钨玻璃与铅玻璃对X射线辐射屏蔽效果的数值计算分析  

Comparative x-ray radiation shielding effect between tungsten glass and lead glass by numerical calculation analysis

作　　者：张志程[1] 陆春海[1,2] 陈敏[3] 倪师军[1] 杨森[1] 刘自霞[1] 黄硕[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059 [2]东华理工大学放射性地质与勘探技术国防重点学科实验室,江西南昌330013 [3]西南科技大学国防学院,四川绵阳621010

出　　处：《核科学与工程》2016年第3期424-429,共6页Nuclear Science and Engineering

基　　金：成都理工大学科研启动项目(KR1115);核废物与环境安全国防重点学科实验室开放基金项目(10zxnk01);放射性地质与勘探技术国防重点学科实验室开放基金项目(2011RGET022);贵州省教育厅科技项目(2011010);四川省教育厅重点项目(13ZA0067);国家自然科学基金项目(41273031)

摘　　要：通过WINXCOM理论计算X射线能量在20~100 keV下,钨和铅硅酸盐玻璃的质量衰减系数、有效原子序数和半值层。结果发现,随着WO_3和PbO含量的增加质量衰减系数增加。钨玻璃在70 keV能量下,由于光电效应发生突变,质量衰减系数突然增强。随后,利用MCNP 5计算5种能量下钨玻璃的积累因子,以便进一步修正模拟结果以达到真实情况。The mass attenuation coefficients,effective atomic number and half-value layer of tungsten and lead silicate glasses have been theoretically calculated for X-rays photon energies of 20 keV^100 keV by WINXCOM program.These results indicate that the total mass attenuation coefficients were increased by increasing WO_3 and PbO concentration.Mass attenuation coefficient of tungsten glass suddenly increases at energy of 70 keV,due to the photoelectric had mutation.Subsequently,the build-up factor of tungsten glass has been calculationed by MCNP 5 at five kinds of energies,so that further amendments to the simulation results in order to achieve real situation.

关 键 词：硅酸盐玻璃 屏蔽材料 衰减系数 

分 类 号：TL7[核科学技术—辐射防护及环境保护]