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Kinetic energy and charge state effects in the X-ray emission of Mo surface induced by Xe^(q+)(q=25,29) ions

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Science china(Physics,Mechanics & Astronomy) 2008年第9期51卷 1240-1244页

作者： cui ying1,yang ShengSheng2,yang zhihu3,xu Jinzhang1,zhang hongqiang1,xu xu1,shao jianxiong1,liU zhaoYuan1,xiao guoqing3,zhang xiaoAn4,zhao yongtao3,zhang YanPing3 & chen ximeng1 1 Department of modern Physics,lanzhou University,lanzhou 730000,china 2 National Key Laboratory of Vacuum & Cryogenics Technology and Physics,lanzhou 730000,china 3 institute of modern Physics,chinese academy of sciences,lanzhou 730000,china 4 Normal College of Xianyang,Xianyang 713000,china Department of modern Physics Lanzhou University Lanzhou China National Key Laboratory of Vacuum & Cryogenics Technology and Physics Lanzhou China institute of {1. Physics Chinese Academy of Sciences Lanzhou China Normal College of Xianyang Xianyang China

L-shell X-ray spectra of Mo surface induced by Xe25+ and Xe29+ were measured. The X-ray intensity was obtained in the kinetic energy range of the incident ions from 350 to 600 keV. The relationship of X-ray intensity ... 详细信息

关键词： X-ray surface kinetic energy and charge state effect Xeq+

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X-ray spectra induced by ^(1.9)Xe^(q+) impacting the metal surface

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Science china(Physics,Mechanics & Astronomy) 2008年第1期51卷 82-89页

作者： zhang xiaoAn 1.2 ,xiao guoqing 1 ,yang zhihu 1 ,chen ximeng 3 ,zhao yongtao 1 , li fuli 4 ,WANG li 1.2 ,cui ying 3 ,zhang hongqiang 3 &zhan wenlong 1 1institute of modern Physics,chinese academy of sciences,lanzhou 730000,china 2Department of Physics,Xianyang Normal University,Xianyang 712000,china 3Department of modern Physics,lanzhou University,lanzhou 730000,china 4Department of Applied Physics,Xi’an Jiaotong University,Xi’an 710049,china institute of {1. Physics Chinese Academy of Sciences Lanzhou China Department of Physics Xianyang Normal University Xianyang China Department of modern Physics Lanzhou University Lanzhou China Department of Applied Physics Xi’an Jiaotong University China

Using the slow highly charged ions 1.9 Xe q+ (q=25,26,27;initial kinetic T0≤4.65 keV/a.u.)to impact Au surface,the Au atomic Mαcharacteristic X-ray spectrum is *** result shows that as long as the charge state of projectile is high enough,the heavy atomic characteristic X-ray can be effectively excited even though the incident beam is very weak(nA magnitude),and the X-ray yield per ion is in the order of 1.-8and increases with the kinetic energy and potential energy of *** measuring the Au Mα-X-ray spectra,Au atomic N-level lifetime is estimated at about 1.33×1.-1.s based on Heisenberg uncertainty relation.

关键词： slow highly charged ions characteristic X-ray level lifetime

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4-21.M X-ray Emission of Hollow Xeq+ Atoms above Metallic Surfaces

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IMP & HIRFL Annual Report 2014年第1期 198-198页

作者： Song zhangyong yang zhihu zhang hongqiang shao jianxiong cui ying zhang Yanping zhang xiaoan zhao yongtao chen ximeng xiao guoqing 不详

A highly charged ion (HCI) has a large potential energy, which is equal to the binding energies of all the elec-trons removed to create the ion. When such a slow HCI approaches and then enters into a solid surface, an \abovethe surface" and a \below the surface" hollow atom will be formed, respectively, by capturing electrons from thesurface into its empty levels. Not only new aspects of atom physics has been introduced by hollow atoms, but alsoHCI applications in material science has promising prospects, such as surface analysis, the synthesis of materialswith new properties, and the formation of nanostructure that have been an active area of research in recent years[1.?6].

关键词： Emission Hollow Metallic

4-1. Rydberg-to-M-shell X-ray Emission of Hollow Xe Atoms/ions above Metallic Surfaces

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IMP & HIRFL Annual Report 2015年第1期 208-209页

作者： Song zhangyong yang zhihu zhang hongqiang shao jianxiong cui ying zhang Yanping zhang xiaoan zhao yongtao chen ximeng xiao guoqing 不详

According to the classical over-barrier model[1.2], as a slow highly charged Xeq+ ion approaches a critical distance R =p 2q from the surface with the work function W, it begins to resonantly capture conduction electr... 详细信息

关键词： Hollow Xe Atoms/ions

X-rav Emission of Hollow Atoms

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IMP & HIRFL Annual Report 2003年 31-31页

作者： zhao yongtao, xiao guoqing, zhang xiaoan, yang zhihu, chen ximeng and zhang YanpingDepartment of Applied Physics, Xi'an Jiaotong University, Xi'an. "institute of Physics, lanzhou University, lanzhou. Department of Physics, Shanxi Normal University Taiyuan.

We have systematically investigated the X-rays emission of hollow atoms (HA) which formed in the interaction of highly charged ions with a variety of solid surfaces at the atomic physics experimental setup of IMP. The X-ray spectra were measured by Si(li) detectors with effective energy ranging from 1.keV to 60 keV. The

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