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Zhou X, Wei J, Cheng R, Liang C, Chen Y, Zhang X, Zhao Y. Multiple ionization of iodine for 2.5-5.0 MeV I 22+ ions impacting on Fe target. Sci Rep 2022; 12:6253. [PMID: 35428756 PMCID: PMC9012858 DOI: 10.1038/s41598-022-10337-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/31/2022] [Indexed: 11/25/2022] Open
Abstract
The L-shell X-ray emissions of iodine are investigated as a function of the incident energy for I22+ ions impacting on Fe target in the energy region near the Bohr velocity. Six distinct L-subshell X-rays, Lι, Lα1, 2, Lβ1, 3, 4, Lβ2, 15, Lγ1 and Lγ2, 3, 4, 4', are observed. Compared to the atomic data, the energy of the experimental X ray shifts to the higher energy side. The relative intensity ratios of Lι, Lβ1, 3, 4, Lβ2, 15, to Lα1, 2, Lι to Lβ2, 15 and Lγ2, 3, 4, 4/ to Lγ1 are enhanced, but has no obvious change with the increase of projectile energy in the present energy region. That is interpreted by the multiple ionization effect of the M-, N- and O-shell electrons.
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Affiliation(s)
- Xianming Zhou
- Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP, CAS, Xianyang Normal University, Wenlin Rd. 01, XianyangShannxi, 712000, China. .,School of Science, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Jing Wei
- Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP, CAS, Xianyang Normal University, Wenlin Rd. 01, XianyangShannxi, 712000, China
| | - Rui Cheng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Changhui Liang
- Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP, CAS, Xianyang Normal University, Wenlin Rd. 01, XianyangShannxi, 712000, China
| | - Yanhong Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Xiaoan Zhang
- Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP, CAS, Xianyang Normal University, Wenlin Rd. 01, XianyangShannxi, 712000, China.,Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Yongtao Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.,School of Science, Xi'an Jiaotong University, Xi'an, 710049, China
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