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X-ray emission from the metastable components of slow ar16+beam on metallic surfaces

文献类型：期刊论文

作者Zhang, H.Q.1; Chen, X.M.1; Liu, Z.Y.1; Yang, Z.H.2; Xu, J.Z.1; Cui, Y.1; Xu, X.1; Shao, J.X.1; Zhang, X.A.3; Zhao, Y.T.2
刊名Surface Review and Letters
出版日期2009
卷号16页码:463-467
ISSN号0218-625X
DOI10.1142/S0218625X0901286X
英文摘要K-shell X-ray emission was observed in the neutralization process of Ar16+interacting with beryllium and molybdenum at slow speed (less than Bohr velocity). The K-shell X-ray emission came from the metastable component of Ar16+beam with the configuration (1s2s) produced from electron cyclotron resonance ion source. The intensity ratio of KβX-ray emission to KαX-ray emission (IKβ/IKα) in the neutralization process decreased when the kinetic energy of the projectile increased. This is closely related to the flight time the projectiles spend above the surface, which is dominated by both the work function of the metal and the normal velocity component of the incident ions to the surface according to the classical over-barrier model. As the relation between IKβ/IKαand the above-flight time shows, the longer time above the surface the larger ratio due to the above-surface contribution. Furthermore, the smaller work function leads to the smaller contribution from the above surface. © 2009 World Scientific Publishing Company.
出版者World Scientific Publishing Co. Pte Ltd
源URL[http://119.78.100.186/handle/113462/64026]  
专题中国科学院近代物理研究所
作者单位1.Department of Modern Physics, Lanzhou University, Lanzhou 730000, China
2.Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
3.Normal College of Xianyang, Xianyang 713000, China
推荐引用方式
GB/T 7714		 Zhang, H.Q.,Chen, X.M.,Liu, Z.Y.,et al. X-ray emission from the metastable components of slow ar16+beam on metallic surfaces[J]. Surface Review and Letters,2009,16:463-467.
APA Zhang, H.Q..,Chen, X.M..,Liu, Z.Y..,Yang, Z.H..,Xu, J.Z..,...&Xiao, G.Q..(2009).X-ray emission from the metastable components of slow ar16+beam on metallic surfaces.Surface Review and Letters,16,463-467.
MLA Zhang, H.Q.,et al."X-ray emission from the metastable components of slow ar16+beam on metallic surfaces".Surface Review and Letters 16(2009):463-467.

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来源：近代物理研究所

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