INTERACTION OF AR-17+ IONS ON METALLIC SURFACES AT GRAZING-INCIDENCE
INTERACTION OF AR-17+ IONS ON METALLIC SURFACES AT GRAZING-INCIDENCE
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DOI：
10.1103/physreva.48.1098
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发表时间：
1993-08-01
影响因子：
2.9
通讯作者：
BRIAND, P
中科院分区：
文献类型：
--
作者：
DETAT, B;BRIAND, JP;BRIAND, P
用晶体谱仪观察Ar ~（17+）离子在飞行中发射的X射线，研究了不同入射角下Ar ~（17+）离子在金属表面上的相互作用。已经开发了一个模型来描述的表面外的离子的行为，和Dirac-Fock计算的俄歇率的状态与许多电子在高n状态已经进行。在掠入射下，在高n态下，在表面外形成中空原子，与在低n态（n=3-4）下在表面下形成的中空原子相反。这些非常兴奋的离子在表面外的基态的衰变不到总衰变的1%。
The interaction of Ar17+ ions on metallic surfaces has been studied at various incidence angles by looking at the x rays emitted in flight by the ions with a crystal spectrometer. A model has been developed to describe the behavior of the ions outside the surface, and Dirac-Fock calculations of the Auger rates for states with many electrons in high-n states have been performed. The formation of hollow atoms outside the surface, in high-n states, has been observed at grazing incidence, in contrast to the hollow atoms formed below the surface in lower-n states (n=3-4). The decay to the ground state of these very excited ions outside the surface represents less than 1% of the overall decays.