Reduction of the ionization energy for 1s-electrons in dense aluminum plasmas

23rd International Conference on Spectral Line Shapes

Lin, C.^1 ; Reinholz, H.^1,2 ; Röpke, G.^1

Universität Rostock, Institut für Physik, Rostock

18051, Germany^1

University of Western Australia, School of Physics, Crawley

WA

6009, Australia^2

关键词: Aluminum plasmas;    Eigenstates;    Energy shift;    Free electron;    Multielectron system;    Plasma environments;    Quantum statistical theory;    Solid density;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/810/1/012051/pdf
DOI  :  10.1088/1742-6596/810/1/012051

来源: IOP

【 摘 要 】

The properties of a bound multi-electron system immersed in a plasma environment are strongly modified by the surrounding plasma. In particular, the modification of the ionization energy is described by the electronic self-energy within the framework of the quantum statistical theory. We present the energy shift of the eigenstates and the lowering of the continuum edge of free electrons in a plasma. The reduction of the ionization potential is determined by their difference. This ionization potential depression for the 1s-levels in dense aluminum plasmas is calculated. Comparisons with other theories and the experimental data are shown for aluminum plasma at solid density 2.7 g/cm3.