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Influence of the electron-exchange and quantum shielding on the bremsstrahlung spectrum in degenerate quantum plasmas

Title
Influence of the electron-exchange and quantum shielding on the bremsstrahlung spectrum in degenerate quantum plasmas
Author
정영대
Keywords
Condensed matter electronic structure; General relativity; Condensed matter properties; Electrical properties; Astrophysics; Physical radiation effects; Ionospheric physics; Photons; Magnetospheric dynamics; Strongly coupled plasmas; NONIDEAL PLASMA; COULOMB; SCATTERING; CHARGE; DENSE
Issue Date
2013-10
Publisher
AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Citation
PHYSICS OF PLASMAS, 2013, 20(10), P.103302- (6pages)
Abstract
The influence of the electron-exchange and quantum shielding on the bremsstrahlung spectrum is investigated in degenerate quantum plasmas. The impact-parameter analysis with the Shukla-Eliasson potential is applied to obtain the electron-ion bremsstrahlung radiation cross section as a function of the impact parameter, photon energy, projectile energy, electron-exchange parameter, Fermi energy, and plasmon energy. The result shows that the electron-exchange effect strongly enhances the bremsstrahlung radiation spectrum in degenerate quantum plasmas. It is also shown that the influence of the electron-exchange broadens the photon emission range in the electron-ion bremsstrahlung process. It is found that the electron-exchange effect focuses the bremsstrahlung photon energy in the soft photon domain. In addition, it is found that the bremsstrahlung radiation cross section increases with an increase of the Fermi energy and, however, decreases with increasing plasmon energy. (C) 2013 AIP Publishing LLC.
URI
http://aip.scitation.org/doi/abs/10.1063/1.4824456http://hdl.handle.net/20.500.11754/44835
ISSN
1070-664X; 1089-7674
DOI
10.1063/1.4824456
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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