Influence of quantum interference on the polarization and angular distribution of x-ray radiation following electron-impact excitation of highly charged H-like and He-like ions
文献类型：期刊论文
| 作者 | Chen, Z. B.1; Dong, C. Z.; Xie, L. Y.; Jiang, J. |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2014-07-07 |
| 卷号 | 90 |
| ISSN号 | 1050-2947 |
| DOI | 10.1103/PhysRevA.90.012703 |
| 文献子类 | Article |
| 英文摘要 | Detailed calculations are carried out for the polarization properties and angular distribution of the x-ray photoemission of highly charged H-like and He-like ions following electron-impact excitation using a fully relativistic distorted-wave method. The contributions of the magnetic quadrupole (M2) to the subsequent characteristic x-ray emission are investigated systematically. For the Lyman-alpha(1) (2p(3/2) -> 1s(1/2)) radiation of H-like ions, it is shown that the interference between the leading electric dipole (E1) decay and the much weaker M2 decay may significantly reduce the polarization and slightly increase the angular distribution of the emitted x-rays, these characteristics are very similar to the conclusions regarding the radiative electron capture process [G. Weber et al., Phys. Rev. Lett. 105, 243002 (2010)]. However, for the 2s(1/2)2p(3/2)(J = 1) -> 1s(1/2)2s(1/2)(J = 1) radiation of He-like ions, the E1-M2 interference leads to an obvious increase in polarization and a large decrease in the angular distribution of the x-ray photoemission, which is contrary to the Lyman-alpha(1) line of H-like ions. And all these characters strongly depend on the atomic number and the incident electron energy. |
| WOS关键词 | LASER-PRODUCED PLASMAS ; LINE POLARIZATION ; MAGNETIC SUBLEVELS ; TRANSITION-PROBABILITIES ; CIRCULAR-POLARIZATION ; HYPERFINE INTERACTION ; OSCILLATOR-STRENGTHS ; SATELLITE LINES ; CROSS-SECTIONS ; SOLAR-FLARES |
| 资助项目 | National Natural Science Foundation of China[11274254] ; National Natural Science Foundation of China[11147018] ; National Natural Science Foundation of China[U1332206] |
| WOS研究方向 | Optics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000339063300003 |
| 源URL | [http://119.78.100.186/handle/113462/49329]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chen, Z. B. |
| 作者单位 | 1.Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, 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 |
| 推荐引用方式 GB/T 7714 | Chen, Z. B.,Dong, C. Z.,Xie, L. Y.,et al. Influence of quantum interference on the polarization and angular distribution of x-ray radiation following electron-impact excitation of highly charged H-like and He-like ions[J]. PHYSICAL REVIEW A,2014,90. |
| APA | Chen, Z. B.,Dong, C. Z.,Xie, L. Y.,&Jiang, J..(2014).Influence of quantum interference on the polarization and angular distribution of x-ray radiation following electron-impact excitation of highly charged H-like and He-like ions.PHYSICAL REVIEW A,90. |
| MLA | Chen, Z. B.,et al."Influence of quantum interference on the polarization and angular distribution of x-ray radiation following electron-impact excitation of highly charged H-like and He-like ions".PHYSICAL REVIEW A 90(2014). |
入库方式： OAI收割
来源：近代物理研究所
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