Relativistic effects on the cross section and circular polarization of x-ray radiation following longitudinally-polarized electron impact excitation of highly charged ions

doi:10.1088/0953-4075/48/4/045202

	Relativistic effects on the cross section and circular polarization of x-ray radiation following longitudinally-polarized electron impact excitation of highly charged ions
	Chen, Z. B.1; Zeng, J. L.1; Dong, C. Z.2,3,4
	2015-02-28
发表期刊	Journal of Physics B: Atomic, Molecular and Optical Physics
ISSN	0953-4075
卷号	48 期号:4
摘要	Detailed calculations using a fully relativistic distorted-wave method are carried out for the cross sections of longitudinally polarized electron impact excitation from the ground state to the magnetic sublevels of the 1s2p3/2 (J = 2) state of highly charged He-like ions. The relativistic effects on the cross sections and circular polarization of the x-ray photoemission are investigated in detail. For the excitation process, results show that the relativistic effects may become important leading to considerable enhancements in the cross sections. The inclusion of the relativistic effects can modify the cross sections by several orders of magnitude, especially to the Mf = -1 and -2 magnetic sublevels. For the de-excitation process, the relativistic effects make the degree of circular polarization decreases, these features are more pronounced when the incident electron energy and/or atomic number increase. The relativistic effects are found to be much larger compared to the case of the linear polarization of radiation. © 2015 IOP Publishing Ltd.
关键词	Atoms Circular polarization Electrons Excited states Ground state Impact ionization Relativity X rays Degree of circular polarization Distorted wave methods Excitation cross section Highly charged ions Orders of magnitude Polarized electrons Relativistic effects X-ray photoemissions
DOI	10.1088/0953-4075/48/4/045202
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Optics ; Physics
WOS类目	Optics ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:000349116800006
出版者	Institute of Physics Publishing
EI入藏号	20150600495328
EI主题词	Radiation effects
EI分类号	711 Electromagnetic Waves ; 802.2 Chemical Reactions ; 931.3 Atomic and Molecular Physics ; 931.5 Gravitation, Relativity and String Theory ; 932.1 High Energy Physics
原始文献类型	Journal article (JA)
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.nwnu.edu.cn/handle/39RV6HYL/30656
专题	科研机构_甘肃省原子分子物理与功能材料重点实验室
通讯作者	Chen, Z. B.
作者单位	1.Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China; 2.Northwest Normal Univ, Joint Lab Atom & Mol Phys, Lanzhou 730070, Peoples R China; 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730070, Peoples R China; 4.Northwest Normal Univ, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Chen, Z. B.,Zeng, J. L.,Dong, C. Z.. Relativistic effects on the cross section and circular polarization of x-ray radiation following longitudinally-polarized electron impact excitation of highly charged ions[J]. Journal of Physics B: Atomic, Molecular and Optical Physics,2015,48(4).
APA	Chen, Z. B.,Zeng, J. L.,&Dong, C. Z..(2015).Relativistic effects on the cross section and circular polarization of x-ray radiation following longitudinally-polarized electron impact excitation of highly charged ions.Journal of Physics B: Atomic, Molecular and Optical Physics,48(4).
MLA	Chen, Z. B.,et al."Relativistic effects on the cross section and circular polarization of x-ray radiation following longitudinally-polarized electron impact excitation of highly charged ions".Journal of Physics B: Atomic, Molecular and Optical Physics 48.4(2015).

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