| 近Bohr速度的152Eu20+入射Au表面产生的X射线谱 |
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| 引用本文： | 梁昌慧,张小安,李耀宗,赵永涛,梅策香,程锐,周贤明,雷瑜,王兴,孙渊博,肖国青. 近Bohr速度的152Eu20+入射Au表面产生的X射线谱[J]. 物理学报, 2013, 62(6): 63202-063202. DOI: 10.7498/aps.62.063202 |
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| 作者姓名： | 梁昌慧 张小安 李耀宗 赵永涛 梅策香 程锐 周贤明 雷瑜 王兴 孙渊博 肖国青 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金(批准号: 11075135)、陕西省自然科学基础研究项目(批准号: 2010JM1012)、 陕西省教育厅科研计划项目(批准号: 2010JK895)和咸阳师范学院科研基金 (批准号: 09XSYK106)资助的课题. |
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| 摘 要： | 测量了动能为2.0–6.0 MeV的高电荷态离子152Eu20+ 入射Au表面产生的特征X射线谱, 结果表明, 相互作用不仅激发出了Au的 Mζ, Mα和Mδ特征X射线, 还激发出了Eu的Mα X射线, 且X射线总产额随入射离子动能的增加而增加. 计算了Au的M壳层总的X射线产生截面, 并与理论模型的计算结果做了比较分析.关键词：高电荷态离子X射线产额截面
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| 关 键 词： | 高电荷态离子 X射线 产额 截面 |
| 收稿时间： | 2012-10-23 |
X-ray spectrum emitted by the impact of 152Eu20+ of near Bohn velocity on Au surface |
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| Liang Chang-Hui,Zhang Xiao-An,Li Yao-Zong,Zhao Yong-Tao,Mei Ce-Xiang,Cheng Rui,Zhou Xian-Ming,Lei Yu,Wang Xing,Sun Yuan-Bo,Xiao Guo-Qing. X-ray spectrum emitted by the impact of 152Eu20+ of near Bohn velocity on Au surface[J]. Acta Physica Sinica, 2013, 62(6): 63202-063202. DOI: 10.7498/aps.62.063202 |
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| Authors: | Liang Chang-Hui Zhang Xiao-An Li Yao-Zong Zhao Yong-Tao Mei Ce-Xiang Cheng Rui Zhou Xian-Ming Lei Yu Wang Xing Sun Yuan-Bo Xiao Guo-Qing |
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| Affiliation: | 1. Ion Beam and Optical Physical Joint Laboratory of Xianyang Normal University and Institute of Modern Physics Chinese Academy of Sciences,Xianyang 712000, China;2. Institute of Modern Physics Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | The characteristic X-ray spectra produced by the impact of highly charged ions of 152Eu20+ with energies from 2.0 to 6.0 MeV on Au surface are measured. It is found that highly charged ions could excite both the characteristic X-ray spectra of Mζ, Mα and Mδ of Au and the characteristic X-ray spectra of Mα of Eu. The total X-ray yield increases with the ion kinetic energy increasing. The total production cross section of Au induced by Eu20+ is measured and compared with those obtained from the binary encounter approximation, plane-wave-Born approximation, and the energy-loss Coulomb deflection perturbed stationary state relativistic theoretical models. |
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| Keywords: | highly charged ions X-ray yield cross section |
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