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Quantum diffraction effects on the atomic polarization collision in partially ionized dense plasmas

Title
Quantum diffraction effects on the atomic polarization collision in partially ionized dense plasmas
Author
정영대
Keywords
SEMIEMPIRICAL FORMULAS; TRANSPORT-PROPERTIES; SCATTERING PROCESSES; HYDROGEN PLASMAS; ELECTRON-IMPACT; POSITIVE-IONS; BREMSSTRAHLUNG; IONIZATION
Issue Date
2014-04
Publisher
AIP Publishing LLC.
Citation
Physics of Plasmas, 21(4), 논문 번호: 044501
Abstract
The influence of quantum diffraction on the electron-atom polarization collision process is investigated in partially ionized dense plasmas. The pseudopotential model and eikonal method are employed to obtain the eikonal phase shift and eikonal cross section as functions of the impact parameter, collision energy, Debye length, electron de Broglie wavelength, and atomic polarizability. The results show that the eikonal phase shift for the electron-hydrogen atom polarization collision decreases with an increase of the electron de Broglie wavelength. It is important to note that the influence of quantum diffraction produces the repulsive part in the electron-atom polarization interaction. It is also found that the quantum diffraction effect enhances the differential eikonal cross section. Additionally, the total eikonal cross section decreases with increasing electron de Broglie wavelength. The variations of the eikonal cross section due to the influence of finite size of the de Broglie wavelength and Debye radius are also discussed.
URI
https://aip.scitation.org/doi/abs/10.1063/1.4870000http://hdl.handle.net/20.500.11754/54656
ISSN
1070-664X
DOI
10.1063/1.4870000
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > ETC
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