I L-shell X-rays from near Bohr-velocity I-20(+) ions impacting on various targets
文献类型：期刊论文
| 作者 | Zhou Xian-Ming2,3,4 ; Wei Jing2,3; Cheng Rui1; Zhao Yong-Tao1,4; Zeng Li-Xia2,3; Mei Ce-Xiang2,3; Liang Chang-Hui2,3; Li, Yao-Zong2,3; Zhang Xiao-An1,2,3; Xiao Guo-Qing1
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| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2021-01-20 |
| 卷号 | 70期号:2页码:7 |
| ISSN号 | 1000-3290 |
| 关键词 | ion-atom collision X-ray multiple ionization |
| DOI | 10.7498/aps.70.20201236 |
| 通讯作者 | Zhang Xiao-An(zhangxiaoan2000@126.com) |
| 英文摘要 | The L-shell X-ray emissions of iodine are investigated as a function of target atomic number for 4.5-MeV I-20(+) ions impacting on Fe, Co, Ni, Cu and Zn targets. Six distinct L-subshell X-rays are observed. The energy of the x-ray has a blue shift compared with the atomic data. The relative intensity ratio of L beta(1, 3, 4) and L beta(2, )(15) to L alpha(1, 2) almost increase linearly with the target atomic number increasing. The ratio of I(L tau) to I(L alpha(1, 2)) and I (L gamma(2, 3, 4, 4')) to I(L gamma(1)) are approximately proportional to the square of target atomic number. It is indicated that during the interaction of highly charged heavy ions with atom in the energy region near the Bohr velocity, the inner-shell process is mainly caused by the close-range collisions below the surface. There, the projectile not only has enough time to capture electrons from the target atom to be neutralized, but also has enough kinetic energy to ionize the inner-shell electron by coulomb interaction. At the balance between electron capture and ionization, the outer-shells of M, N, O etc. could be multiply ionized. The extent of multiple ionization increases with the target atomic number increasing. That leads to the energy shift, resulting in the change of the relative intensity ratio for the L-subshell X-ray. The smaller the atomic fluorescence, the larger the enhanced fluorescence caused by multiple ionization. |
| WOS关键词 | HIGHLY-CHARGED IONS ; HOLLOW ATOMS ; CROSS-SECTIONS ; K-SHELLS ; EMISSION ; IONIZATION ; COLLISIONS ; SATELLITE |
| 资助项目 | National Basic Research Program of China[2017YFA0402300] ; National Natural Science Foundation of China[11505248] ; National Natural Science Foundation of China[11775042] ; National Natural Science Foundation of China[11875096] ; Scientific Research Program - Shaanxi Provincial Education Department, China[20JK0975] ; Scientific Research Plan of Science and Technology Department of Shaanxi Province, China[2020JM-624] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | CHINESE PHYSICAL SOC |
| WOS记录号 | WOS:000613269400005 |
| 资助机构 | National Basic Research Program of China ; National Natural Science Foundation of China ; Scientific Research Program - Shaanxi Provincial Education Department, China ; Scientific Research Plan of Science and Technology Department of Shaanxi Province, China |
| 源URL | [http://119.78.100.186/handle/113462/137903]  |
| 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.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Ion Beam & Opt Phys Joint Lab Xianyang Normal Uni, Xianyang 712000, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Xianyang 712000, Peoples R China 4.Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Xian-Ming,Wei Jing,Cheng Rui,et al. I L-shell X-rays from near Bohr-velocity I-20(+) ions impacting on various targets[J]. ACTA PHYSICA SINICA,2021,70(2):7. |
| APA | Zhou Xian-Ming.,Wei Jing.,Cheng Rui.,Zhao Yong-Tao.,Zeng Li-Xia.,...&Xiao Guo-Qing.(2021).I L-shell X-rays from near Bohr-velocity I-20(+) ions impacting on various targets.ACTA PHYSICA SINICA,70(2),7. |
| MLA | Zhou Xian-Ming,et al."I L-shell X-rays from near Bohr-velocity I-20(+) ions impacting on various targets".ACTA PHYSICA SINICA 70.2(2021):7. |
入库方式： OAI收割
来源：近代物理研究所
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