不同电荷态的129Xeq+激发Au的X射线发射研究

梁昌慧; 张小安; 李耀宗; 赵永涛; 梅策香; 周贤明; 肖国青

doi:10.7498/aps.64.053201

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.

关键词:

X射线 /
产额 /
BEA模型 /
电荷态

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.

Keywords:

X-ray /
yield /
BEA model /
charge state

作者及机构信息

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

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.

Authors and contacts

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

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11075135), the Natural Science Foundation of Shaanxi Province, China (Grant No. 2010JM1012), and the Scientific Research Program of Education Bureau of Shaanxi Province, China (Grant No. 14JK1803).

参考文献

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[7]	Zhang X A, Zhao Y T, Hoffmann D, Yang Z H, Chen X M, Xu Z F, Li F L, Xiao G Q 2011 Laser Part. Beams 29 265
[8]	Chen X M, Jiang L J, Zhou P, Zhou C L, Gao Z M, Qiu X Y, Cui Y, Wang X A, Lou F J, L X Y, Jia J J, Chen L, Shao J X, L Ying, Wang F 2011 Chin. Phys. B 20 013402
[9]	Albert C T, Janos K, David T A, Eric M G, Malcolm R H, Jeffrey B K, Yan W L, Arthur L R, James H U, Kwang J K, Ingolf L, Piero P, Herman W, Gwyn P W, James H S 2009 X-ray Data Booklet (Berkeley: Lawrence Berkeley National Laboratory)p16
[10]	Awaya Y, Kambara T， Kanai Y 1999 International Journal of Mass Spectrometry 192 49
[11]	Mei C X, Zhao Y T, Zhang X A, Ren J R, Zhou X M, Wang X, Lei Y, Liang C H, Li Y Z, Xiao G Q 2012 Laser Part. Beams 30 665
[12]	Gryziński M 1965 Phys. Rev. 138 A 336
[13]	Hu Q S, Yang Y C 2002 J. YC. Uni. (Natural Science) 24 15 (in Chinese) [胡乔生, 杨衍超 2002 宜春学院学报(自然科学) 24 15]

施引文献

[1]	Zhou X M, Zhao Y T, Cheng R, Wang X, Lei Y, Sun Y B, Wang Y Y, Xu G, Ren J R, Zhang X A, Liang C H, Li Y Z, Mei C X, Xiao G Q 2013 Acta Phys. Sin. 62 083201 (in Chinese) [周贤明, 赵永涛, 程锐, 王兴, 雷瑜, 孙渊博, 王瑜玉, 徐戈, 任洁茹, 张小安, 梁昌慧, 李耀宗, 梅策香, 肖国青 2013 物理学报 62 083201]
[2]	Zhou X M, Zhao Y T, Ren J R, Cheng R, Lei Y, Sun Y B, Xu G, Wang Y Y, Liu S D, Xiao G Q 2013 Chin. Phys. B 22 113402
[3]	Luo X W, Hu B T, Zhang C J, Wang J J, Chen C H 2010 Phys. Rev. A 81 052902
[4]	Cui Y, Yang S S, Yang Z H, Xu J Z, Zang H Q, Xu X, Shao J X, Liu Z Y, Xiao G Q, Zhang X A, Zhao Y T, Zhang Y P, Chen X M 2008 Science in China G 38 1023 (in Chinese) [崔莹, 杨生胜, 杨治虎, 徐进章, 张红强, 徐徐, 邵剑雄, 刘兆远, 肖国青, 张小安, 赵永涛, 张艳萍, 陈熙萌 2008 中国科学 G辑 38 1023]
[5]	Liang C H, Zhang X A, Li Y Z, Zhao Y T, Mei C X, Cheng R, Zhou X M, Lei Y, Wang X, Sun Y B, Xiao G Q 2013 Acta Phys. Sin. 62 063202 (in Chinese) [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 2013 物理学报 62 063202]
[6]	Liang C H, Zhang X A, Li Y Z 2013 Nuclear Physics Review 30 63 (in Chinese) [梁昌慧, 张小安, 李耀宗 2013原子核物理评论 30 63]
[7]	Zhang X A, Zhao Y T, Hoffmann D, Yang Z H, Chen X M, Xu Z F, Li F L, Xiao G Q 2011 Laser Part. Beams 29 265
[8]	Chen X M, Jiang L J, Zhou P, Zhou C L, Gao Z M, Qiu X Y, Cui Y, Wang X A, Lou F J, L X Y, Jia J J, Chen L, Shao J X, L Ying, Wang F 2011 Chin. Phys. B 20 013402
[9]	Albert C T, Janos K, David T A, Eric M G, Malcolm R H, Jeffrey B K, Yan W L, Arthur L R, James H U, Kwang J K, Ingolf L, Piero P, Herman W, Gwyn P W, James H S 2009 X-ray Data Booklet (Berkeley: Lawrence Berkeley National Laboratory)p16
[10]	Awaya Y, Kambara T， Kanai Y 1999 International Journal of Mass Spectrometry 192 49
[11]	Mei C X, Zhao Y T, Zhang X A, Ren J R, Zhou X M, Wang X, Lei Y, Liang C H, Li Y Z, Xiao G Q 2012 Laser Part. Beams 30 665
[12]	Gryziński M 1965 Phys. Rev. 138 A 336
[13]	Hu Q S, Yang Y C 2002 J. YC. Uni. (Natural Science) 24 15 (in Chinese) [胡乔生, 杨衍超 2002 宜春学院学报(自然科学) 24 15]

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