Charge state effect on K-shell ionization of aluminum by 600-3400 keV xenon(q+) (12 < q < 29) ion collisions
文献类型：期刊论文
| 作者 | Song, Z. Y.1,3 ; Yang, Z. H.3; Xiao, G. Q.3; Xu, Q. M.1,3; Chen, J.1,3; Yang, B.1,3; Yang, Z. R.2
|
| 刊名 | EUROPEAN PHYSICAL JOURNAL D
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 64页码:197-201 |
| ISSN号 | 1434-6060 |
| DOI | 10.1140/epjd/e2011-20173-5 |
| 英文摘要 | K-shell X-ray spectra of Al were measured by the interaction of 600-3400 keV Xe (q+) (q = 12-29) ions with Al surface. The X-ray yields per incident ion were deduced and the K-shell ionization cross-sections were obtained from the experimental yield data. With the same incident energy, the K-shell ionization cross-sections of Al excited by Xe (q+) (q < 26) ions were of the same order of magnitude, while for q = 26 and 29 Xe ion collisions, they were, respectively, about two and ten times larger. Taking into account the binding-energy-modification and the recoil effect of target atoms, the binary encounter approximation (BEA) theory was consistent with the experimental data for q < 26 Xe ion collisions, but it underestimated those excited by q = 26 and 29 Xe ions. This indicates that the K-shell ionization of target induced by Xe (q+)(q < 26) ions was mainly due to the direct Coulomb excitation. However for q = 26 and 29 Xe ions collisions, the transfer of 3d vacancies of projectile to the 1s orbital of target via rotational coupling of the 3d pi, delta-3d sigma molecular orbitals, which were formed in the ion-atom quasi-molecule, may cause a considerable contribution to the enhancement of ionization. In addition to the well known Auger and X-ray transition, our experiments proved that the molecular orbital transition ("side-feeding") mechanism is also a significant channel for de-excitation of hollow atoms formed below the surface. |
| WOS关键词 | CHARACTERISTIC X-RAYS ; CROSS-SECTIONS ; HOLLOW ATOMS ; ARGON IONS ; ELECTRON-EMISSION ; ABOVE-SURFACE ; SLOW ; NEUTRALIZATION ; ACCELERATION ; EXCITATION |
| 资助项目 | National Natural Science Foundation of China (NSFC)[11005133] ; National Natural Science Foundation of China (NSFC)[11044008] |
| WOS研究方向 | Optics ; Physics |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000296630800002 |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 源URL | [http://119.78.100.186/handle/113462/33577]  |
| 专题 | 中国科学院近代物理研究所 近代物理研究所_实验物理中心 近代物理研究所_兰州重离子研究装置 原子物理中心 |
| 通讯作者 | Song, Z. Y. |
| 作者单位 | 1.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 2.NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Z. Y.,Yang, Z. H.,Xiao, G. Q.,et al. Charge state effect on K-shell ionization of aluminum by 600-3400 keV xenon(q+) (12 < q < 29) ion collisions[J]. EUROPEAN PHYSICAL JOURNAL D,2011,64:197-201. |
| APA | Song, Z. Y..,Yang, Z. H..,Xiao, G. Q..,Xu, Q. M..,Chen, J..,...&Yang, Z. R..(2011).Charge state effect on K-shell ionization of aluminum by 600-3400 keV xenon(q+) (12 < q < 29) ion collisions.EUROPEAN PHYSICAL JOURNAL D,64,197-201. |
| MLA | Song, Z. Y.,et al."Charge state effect on K-shell ionization of aluminum by 600-3400 keV xenon(q+) (12 < q < 29) ion collisions".EUROPEAN PHYSICAL JOURNAL D 64(2011):197-201. |
入库方式： OAI收割
来源：近代物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。