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Ionization Energies of Ions in Hot and Dense Plasma: Beryllium-Like Ions for Z=26-36 |
| LI Yong-Qiang, WU Jian-Hua, YUAN Jian-Min |
| Department of Physics, National University of Defense Technology, Changsha 410073 |
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| Cite this article: |
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LI Yong-Qiang, WU Jian-Hua, YUAN Jian-Min 2008 Chin. Phys. Lett. 25 3627-3630 |
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Abstract Ionization energies of beryllium-like ions for Z=26-36 in hot and dense plasmas (ne=1022-1024cm-3, kT=500-2000eV) are obtained by using an approach developed for electronic structure and transition property of ions in hot and dense plasmas based on the multi-configuration Dirac--Fock model. Influence of the plasma environment is considered by introducing a correction to the one-electron potential to account for the screening of the ionized electrons. This correction is calculated from the ionized electron micro-space distribution, which is obtained based on an average atom model for the temperature and density-dependent average ionization of atoms in plasmas. Comparison between the present and the ion sphere models is made to display the significance of the ionized electron micro-space distribution.
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| Keywords:
32.10.Hq
31.70.Dk
52.25.Jm
31.15.Bs
31.15.Ne
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Received: 20 May 2008
Published: 26 September 2008
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