K-Shell Ionization Cross Sections of Transition and Non Metals by Electron Impacts

Tiwari, Neelam

doi:10.4208/jams.111810.122310a

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Nonthermal and Shielidng Effects1

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2014

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“…The theoretical investigation for the K-shell ionization of C atom can be found in a recent investigation using the modified Khare model. 34 Figure 1 shows the classical characteristic function F NT as a function of the scaled Debye length k D ð k D =a Z Þ for various values of the spectral index j of Lorentzian plasmas. As it is seen, the characteristic function F NT increases with decreasing the spectral index j.…”

Section: Nonthermal and Shielidng Effectsmentioning

confidence: 99%

Quantum tunneling resonant electron transfer process in Lorentzian plasmas

Hong¹,

Jung²

2014

Physics of Plasmas

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The quantum tunneling resonant electron transfer process between a positive ion and a neutral atom collision is investigated in nonthermal generalized Lorentzian plasmas. The result shows that the nonthermal effect enhances the resonant electron transfer cross section in Lorentzian plasmas. It is found that the nonthermal effect on the classical resonant electron transfer cross section is more significant than that on the quantum tunneling resonant charge transfer cross section. It is shown that the nonthermal effect on the resonant electron transfer cross section decreases with an increase of the Debye length. In addition, the nonthermal effect on the quantum tunneling resonant electron transfer cross section decreases with increasing collision energy. The variation of nonthermal and plasma shielding effects on the quantum tunneling resonant electron transfer process is also discussed.

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Section: Nonthermal and Shielidng Effectsmentioning

confidence: 99%