Xe^(30+)在Au下表面退激辐射的X射线谱  

X Ray Spectrum Emitted from Xe^(30+) below Au Surface

作　　者：李耀宗[1] 张小安[1,2] 曾利霞[1] 

机构地区：[1]咸阳师范学院与中国科学院近代物理研究所联合共建离子束与光物理实验室,咸阳712000 [2]中国科学院近代物理研究所,兰州730000

出　　处：《科学技术与工程》2017年第17期149-153,共5页Science Technology and Engineering

基　　金：国家自然科学基金(11505248);青年科学基金(11605147);陕西省教育厅科研计划项目(16JK1821)资助

摘　　要：报导了1.0~3.0MeV的Xe^(30+)离子与1.0MeV的Xe^(26+)离子入射Au表面发射的X射线谱,考虑到探测器Be窗对射线的非均匀衰减,还原了1.0MeV的Xe^(30+)离子产生X射线谱。通过用经典过垒模型及两体碰撞模型的分析表明:动能1.0~3.0MeV的Xe^(30+)离子入射Au靶,下表面空心原子M壳层空穴退激发射了能量0.7~1.75keV的Xe M X射线,下表面空心原子N壳层空穴退激发射了能量0.5~0.7keV的Xe N X射线。X ray spectrum excited by 1. 0 ~ 3. 0 MeV Xe^(30+)ions and 1. 0 MeV Xe^(26+)ions impacting Au surface have been reported. Considering the nonlinear damping of detector Be window for different energy rays,X ray spectrum by 1. 0 Me V Xe^(30+)ions before the attenuation were recovered. Through the analysis by using the classical over-the-barrier model and two body collision model,that were showed,the emission of Xe M X ray spectrum with0. 70 ~ 1. 75 ke V energy range originate from the initial M shell vacancies of hollow atom below Au surface,and the emission of Xe N X ray spectrum with 0. 50 ~ 0. 7 ke V energy range originate from the initial N shell vacancies of hollow atom below Au surface,by 1. 0 ~ 3. 0 Me V Xe^(30+)ions impacting Au surface.

关 键 词：高电荷态离子 空心原子 下表面过程 X射线谱 

分 类 号：O434.1[机械工程—光学工程]