Multiple ionization of iodine for 2.5–5.0 MeV I22+ ions impacting on Fe target

• Published in: Scientific reports Vol. 12; no. 1; pp. 6253 - 8
• Main Authors: Zhou, Xianming, Wei, Jing, Cheng, Rui, Liang, Changhui, Chen, Yanhong, Zhang, Xiaoan, Zhao, Yongtao
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 15.04.2022; Nature Publishing Group; Nature Portfolio
• Subjects: 639/766/36/1120; 639/766/36/1122; Emissions; Energy; Humanities and Social Sciences; Iodine; Ionization; Ions; multidisciplinary; Science; Science (multidisciplinary)
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-022-10337-2

The L-shell X-ray emissions of iodine are investigated as a function of the incident energy for I 22+ ions impacting on Fe target in the energy region near the Bohr velocity. Six distinct L-subshell X-rays, Lι, Lα 1, 2 , Lβ 1, 3, 4 , Lβ 2, 15 , Lγ 1 and Lγ 2, 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, Lβ 1, 3, 4 , Lβ 2, 15 , to Lα 1, 2 , Lι to Lβ 2, 15 and Lγ 2, 3, 4, 4/ to Lγ 1 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.