期刊论文

中文

物理学报

1000-3290

2022

71

13

146-152

10.7498/aps.70.20212434

国家自然科学基金（批准号:11675279,12075291）资助的课题；

本校为第一机构

本文利用“二态矢量模型”详细研究了高电荷态O7+、N6+离子入射Al表面时中间里德堡态的形成过程,给出了电子被俘获至不同量子数（nA=2-7）的几率,以及电子俘获至里德堡态最可能的离子-表面距离。计算结果表明,较大的主量子数nA对应较小的里德堡态几率,因此O7+、N6+离子入射Al表面时辐射的X射线主要来源于较小的nA至基态的退激。为了验证计算结果,我们测量了O7+、N6+离子入射Al表面的X射线发射谱,并运用FAC程序计算了不同高里德堡态退激到基态的跃迁能（np-1s）。实验测量到O、N的K-X射线峰,其特征峰的中心值接近主量子数n=2至n=1的跃迁能,说明发射的X射线主要来源于2p-1s的跃迁,与“二态矢量模型...

The study of the interaction between highly charged ions and solid surfaces not only has great significancefor basic scientific research such as atomic physics, astrophysics, and high energy density physics but also haspromising application prospects in biomedicine, nanotechnology, surface analysis, and microelectronics. In thispaper, the intermediate Rydberg states formed during highly charged and ions incident on Al surfaceare studied theoretically by using the two-state vector model. Both the probability of electron capture intodifferent Rydberg states and the most probable neutralization d...