| ATOMIC AND MOLECULAR PHYSICS |
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Electron Impact Excitations and Linear Polarization for 1s2 1S0–1s2p 3,1P1 Lines of Fe24+ Ions under Screened Coulomb Interactions |
| JIANG Jun1**, DONG Chen-Zhong1,2, XIE Lu-You1 |
1Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070
2Joint Laboratory of Atomic and Molecular Physics, Northwest Normal University and Institute of Modern Physics of Chinese Academy of Sciences, Lanzhou 730070
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| Cite this article: |
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JIANG Jun, DONG Chen-Zhong, XIE Lu-You 2014 Chin. Phys. Lett. 31 023401 |
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Abstract Electron impact excitation cross sections from the ground state to the individual magnetic sublevels of 1s2p 3,1P1 states in high-temperature dense plasmas are calculated for highly charged He?like Fe24+ions by using a fully relativistic distorted?wave method. The Debye?Hückel screening model is used to screen the projectile electron from the nucleus and target electrons. The linear polarization degrees for these lines are obtained. It is found that the cross sections at all incident energies decrease with the increase of the screening for these excitations. The influence of screening on linear polarization degrees of the 1P1 line is very small. The linear polarization degrees of 3P1 line decrease sharply at low incident energy with the increase of the screening.
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Received: 04 November 2013
Published: 28 February 2014
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| PACS: |
34.80.Dp
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(Atomic excitation and ionization)
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