K-shell electron-impact excitation and polarization of x-ray emission of Fe20+ ion. Issue 13 (January 2020)

• Record Type: Journal Article
• Authors: Zhang, J M; Xie, L Y; Zhang, D H; Jiang, J; Wu, Z W; Dong, C Z
• Is Part Of: Journal of physics. Volume 1412:Issue 13(2019)
• Publication Date: 2020-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1412/13/132019
• Languages: English
• ISSNs: 1742-6588

Abstract

Synopsis: The total and magnetic cross sections for K -shell electron impact excitation (EIE) of Fe 20+ have been calculated using the fully relativistic distorted-wave approach. Degrees of linear polarization of x-ray emission following EIE are presented for several stronger 2p→1s transitions, and compared with the values for the same transition lines but from dielectronic recombination process of Fe 21+ in the ground state, obvious differences are found that can be employed in diagnosing the formation mechanism of corresponding x-ray lines.