原子能科学技术2011，Vol.45Issue(9)：1147-1152,6.
含硼矿物及环氧树脂的光子质量衰减系数
Mass Attenuation Coefficients of Photon in Boron-Containing Ores and Epoxy
摘要
Abstract
Using the special boron-containing ores in the eastern area of Liaoning Province of China, boron-containing wastes and epoxy as studying object, total mass attenuation coefficients (MAC) of photon for five kinds of materials including ludwigite ore, boron-containing iron ore concentrate, boron rich slag, common boron mud and epoxy at the photon energy from 1 keV to 100 GeV were calculated theoretically, which can provide the data for design of peripheral shielding of radioactive isotopes source, reactor and the particle accelerator. The results show that the addition of boron-containing ores to epoxy leads to obvious variation in total MAC. Photoelectric effect is dominant at the energy ranging from 1 keV to 0.1 MeV. The MAC of boron containing ores varies con-siderably in this energy range and the K edge of the elements in the ores increases the total MAC greatly. Compton scattering is the main interaction at photon energy from 0.1 MeV to 10 MeV and the total MAC is not sensitive to the photon energy in this range, and the MAC of epoxy is higher than ores in this range. The photon MAC insignificantly increases at photon energy ranging from 10 MeV to 100 GeV and the main interaction is pair production in this range. Boron containing iron ore concentrate is the best photon absorber in this energy range.关键词
含硼矿物/环氧树脂/复合材料/光子/质量衰减系数Key words
boron containing ore/ epoxy/composite/ photon/ mass attenuation coefficient分类
资源环境引用本文复制引用
李哲夫,薛向欣..含硼矿物及环氧树脂的光子质量衰减系数[J].原子能科学技术,2011,45(9):1147-1152,6.基金项目
国家自然科学基金资助项目(50774022) （50774022）
国家高技术研究发展计划资助项目(2006AA06Z368) （2006AA06Z368）
