X射线在复合材料中辐射的散射研究  

Scattering research for X-ray radiation internal composites material

作　　者：彭光含[1] 

机构地区：[1]湖南文理学院物理与电子科学学院,常德415000

出　　处：《四川大学学报（自然科学版）》2011年第2期400-404,共5页Journal of Sichuan University(Natural Science Edition)

基　　金：湖南省自然科学基金(07JJ6106);湖南省教育厅科研项目(06C606);湖南省"十一五"重点建设学科-光学基金资助

摘　　要：X射线透射复合材料时发生了康普顿散射现象、二次射线的辐射和多次射线辐射.基于Beer定律,探讨了X射线在复合材料中的二次射线与一次射线的关系.由射线辐射强度方程求得X射线在复合材料中多次射线强度与透射厚度的定量关系,结果表明射线透射强度与能量无关.由散射光子在复合材料中倾斜同一角度时射线的强度微分方程,导出了X射线在复合材料中多次射线辐射强度公式和总强度.The Compton scattering phenomenon, the second--order radiation and multiple order radiation occur when X-ray transmitting into composites material. Based on Beer law of X-ray radiation, a quantitative relationship internal composites material between the first-order and second-order radiations is studied. The quantitative relationship internal composites material between the multiple order radiation intensity and the transmitting thickness is also obtained from the ray radiation intensity equation. The result shows that the radiation intensity has nothing to do with energy. According to radiation intensity differential equation in which the scattering photos tilt in same angle internal composites material, the scattering intensity equations of the multiple order ray and the general radiation intensity of X-ray transmitting parallel is derived.

关 键 词：散射 复合材料 工业计算机断层扫描成像技术 辐射 

分 类 号：O571.32[理学—粒子物理与原子核物理]