Plasma effect on fast-electron-impact-ionization from 2p state of hydrogen-like ions
Plasma effect on fast-electron-impact-ionization from 2p state of hydrogen-like ions
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DOI：
10.1063/1.4833616
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发表时间：
2013-12
影响因子：
2.2
通讯作者：
Y. Qi;L. Ning;Jianguo Wang;Y. Qu
中科院分区：
文献类型：
--
作者：
Y. Qi;L. Ning;Jianguo Wang;Y. Qu
Plasma effects on the high-energy electron-impact ionization process from 2p orbital of Hydrogen-like ions embedded in weakly coupled plasmas are investigated in the first Born approximation. The plasma screening of the Coulomb interaction between charged particles is represented by the Debye Huckel model. The screening of Coulomb interactions decreases the ionization energies and varies the wave functions for not only the bound orbital but also the continuum; the number of the summation for the angular-momentum states in the generalized oscillator strength densities is reduced with the plasma screening stronger when the ratio of e/I2p (I2p is the ionization energy of 2p state and e is the energy of the continuum electron) is kept, and then the contribution from the lower-angular-momentum states dominates the generalized oscillator strength densities, so the threshold phenomenon in the generalized oscillator strength densities and the double differential cross sections are remarkable: The accessional mini...
