摘要
应用量子电动力学理论以及实验室参考系与质心参考系的变换方法,探讨了高能γ射线与物质的相互作用过程:三电子产生.通过对三电子产生的阈能、截面及次级γ射线辐射的探讨和分析发现:三电子的产生阈能为2.04MeV,产生截面随入射光子能量增加而急剧增加,但随原子核序数的增大而减小.
By means of the quantum electrodynarnics theory and the transform between different reference systems, the three - electron production, which is happened in the interaction of high energy photon and substance, was analyzed. It is found that the threshold energy of three - electron production is 2.04 MeV. The resuits also show that the cross - section increases with the photon＇ s energy but decreases with the atomic number.
出处
《佳木斯大学学报（自然科学版）》
CAS
2013年第1期95-97,共3页
Journal of Jiamusi University：Natural Science Edition
基金
河北省自然科学基金(A2012210043)
关键词
三电子产生
阈能
产生截面
three - electron production
threshold energy
cross - section
