Effects of boron number per unit volume on the shielding properties of composites made with boron ores from China  

作　　者：LI Zhefu XUE Xiangxin LIU Sulan LI Yong DUAN Peining 

机构地区：[1]School of Materials & Metallurgy,Northeastern University [2]Liaoning Key Laboratory for Ecologically Comprehensive Utilization of Boron Resources and Materials

出　　处：《Nuclear Science and Techniques》2012年第6期344-348,共5页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China(Grant Number:50774022)

摘　　要：The total macroscopic removal cross sections,deposited energies and the absorbed doses of three new shielding composites loaded with specific boron-rich slag,boron concentrate ore and boron mud of China for 252Cf neutron source were investigated by experimental and Monte Carlo calculation.The results were evaluated by boron mole numbers per unit volume in composites.The half value layers of the composites were calculated and compared with that of Portland concrete,indicating that ascending boron mole numbers per unit volume in the composites can enhance the shielding properties of the composites for 252Cf neutron source.The total macroscopic removal cross sections,deposited energies and the absorbed doses of three new shielding composites loaded with specific boron-rich slag,boron concentrate ore and boron mud of China for ^（252）Cf neutron source were investigated by experimental and Monte Carlo calculation.The results were evaluated by boron mole numbers per unit volume in composites.The half value layers of the composites were calculated and compared with that of Portland concrete,indicating that ascending boron mole numbers per unit volume in the composites can enhance the shielding properties of the composites for ^（252）Cf neutron source.

关 键 词：复合材料 屏蔽性能 硼矿石 体积 单位 蒙特卡罗计算 中国 吸收剂量 

分 类 号：TB332[一般工业技术—材料科学与工程]