| 不同电荷态的129Xeq+激发Au的X射线发射研究 |
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| 引用本文： | 梁昌慧,张小安,李耀宗,赵永涛,梅策香,周贤明,肖国青. 不同电荷态的129Xeq+激发Au的X射线发射研究[J]. 物理学报, 2015, 64(5): 53201-053201. DOI: 10.7498/aps.64.053201 |
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| 作者姓名： | 梁昌慧 张小安 李耀宗 赵永涛 梅策香 周贤明 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)、陕西省自然科学基金(批准号: 2010JM1012) 和陕西省教育厅科研计划(批准号: 14JK1803)资助的课题. |
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| 摘 要： | 报道了在兰州重离子加速器国家实验室测量动能为2.4 MeV的Xeq+(q=10, 15, 20, 26)轰击Au表面辐射的X射线的实验数据. 实验结果表明, Au的M-X射线有不同程度的能移, 这是由于入射过程引起了靶原子内壳层的多电离, 多电离的程度主要取决于离子的外壳层电子分布. 计算了X射线产额, 并与BEA理论计算值进行了比较, 讨论了电荷态对X射线产额的影响.
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| 关 键 词： | X射线 产额 BEA模型 电荷态 |
| 收稿时间： | 2014-06-10 |
Study of X-ray spectrum emitted due to the impact of 129Xeq+ on different ion's charge on Au |
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| Liang Chang-Hui,Zhang Xiao-An,Li Yao-Zong,Zhao Yong-Tao,Mei Ce-Xiang,Zhou Xian-Ming,Xiao Guo-Qing. Study of X-ray spectrum emitted due to the impact of 129Xeq+ on different ion's charge on Au[J]. Acta Physica Sinica, 2015, 64(5): 53201-053201. DOI: 10.7498/aps.64.053201 |
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| Authors: | Liang Chang-Hui Zhang Xiao-An Li Yao-Zong Zhao Yong-Tao Mei Ce-Xiang Zhou Xian-Ming Xiao Guo-Qing |
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| Affiliation: | 1. Ion beam & 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: | We report the experiment data of X-ray spectra produced by the impact of Xeq+ (q=10, 15, 20, 26) with 2.4 MeV kinetic energy on Au surface in the National Laboratory of Heavy Ion Research Facility in Lanzhou. Results show that there is different broadening of Au M X-ray owing to multiply ionized effect in the collision with heavy ions, the degree of ionization mainly depends on the distribution of the electronic states in the ions' outer shell. The yield of X-ray is calculated and compared with BEA (binary encounter approximation) model, and the effect of ion charge state on the X-ray yield is also discussed. |
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| Keywords: | X-ray yield BEA model charge state |
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