Multiple ionization effect of Au induced by different ions

doi:10.7498/aps.67.20181642

	Multiple ionization effect of Au induced by different ions
	Liang Chang-Hui 2,4; Zhang Xiao-An 2,3,4; Li Yao-Zong 2,4; Zhao Yong-Tao1,3 ; Zhou Xian-Ming3 ; Wang Xing 1; Mei Ce-Xiang 2,4; Xiao Guo-Qing3
刊名	ACTA PHYSICA SINICA
	2018-12-20
卷号	67 页码:243201
关键词	heavy ions X-ray energy shift multiple ionization effect
ISSN号	1000-3290
DOI	10.7498/aps.67.20181642
英文摘要	We report the experimental data of characteristic X-ray spectra produced by the impact of H+, Ar8+, Ar 12+, Kr13 + and Eu 20+ ions with different kinetic energies on Au surface in the National Laboratory of Heavy Ion Research Facility in Lanzhou, China. The energy shifts of X-ray spectra are analyzed and the ratio of X-ray yield is calculated. The results show that H+ can excite the characteristic X-ray spectra of Mc and M-zeta and M-alpha , of Au, while Ar8+, Ar12+, Kr13+ and Eu20+ can excite the characteristic X-ray spectra of M-zeta, M alpha, M gamma and M-delta of Au, because the inner shells of target atom are multiply ionized by heavy ions impact, so that the relative intensity ratio of the X-rays changes when the heavy ions are incident. There are different energy shifts of Au M X-ray due to multiple ionization effect in collision. When the ion incident energy is lower, the degree of multiple ionization of the inner shells of the target atom is almost independent of the incident energy, when the ion energy is higher, the degree of multiple ionization increases with incident ion energy increasing. At the same time, the degree of multiple ionization also depends on the number of holes in the outer shell of the ion and its atomic number. That the ratio of X-ray yield increases with the increase of the atomic number of the incident ion further indicates that the degree of multiple ionization increases with atomic number of the incident ion increasing. The multiple ionization and electron configuration of the inner shells of the atom can be determined by the energy shift and spectra broadening. These measurements provide basic data for further studying the multiple ionization mechanism of the inner shells of the atom. But due to the limitation of the resolution of the detector, the spectral broadening data cannot be measured. It is necessary to use a higher-resolution detector to further study the multi-ionization effect of the inner shells of the atom.
资助项目	Scientific Research Program of Education Bureau of Shaanxi Province, China[14JK1803]
WOS关键词	X-RAY-EMISSION ; HEAVY-ION
WOS研究方向	Physics
语种	中文
出版者	CHINESE PHYSICAL SOC
WOS记录号	WOS:000455406800009
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/64488]
专题	中国科学院近代物理研究所
通讯作者	Zhang Xiao-An
作者单位	1.Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Shaanxi, Peoples R China 2.Xianyang Normal Univ, Ion Beam & Opt Phys Joint Lab, Xianyang 712000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Xianyang 712000, Peoples R China
推荐引用方式 GB/T 7714	Liang Chang-Hui,Zhang Xiao-An,Li Yao-Zong,et al. Multiple ionization effect of Au induced by different ions[J]. ACTA PHYSICA SINICA,2018,67:243201.
APA	Liang Chang-Hui.,Zhang Xiao-An.,Li Yao-Zong.,Zhao Yong-Tao.,Zhou Xian-Ming.,...&Xiao Guo-Qing.(2018).Multiple ionization effect of Au induced by different ions.ACTA PHYSICA SINICA,67,243201.
MLA	Liang Chang-Hui,et al."Multiple ionization effect of Au induced by different ions".ACTA PHYSICA SINICA 67(2018):243201.