Integral and Differential Cross Sections for the Electron-Impact Excitation of Ar^<7+> Ions

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概要

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• Electron-impact excitation of Ar" is studied theoretically with the R-matrix method. Exci-tation cross sections are calculated for the transitions from the ground state (3s) to the 3p, 3d,4s, 4p and 4d excited states at the impact electron energies from threshold to 110 eV, allowingfor coupling between the lowest eleven states. All the cross sections show complicated resonancestructure. Differential cross sections (DCSs) are also calculated for the 3s -* 3p, 3d, 4s transitionsboth at the resonance and at the off-resonance energies. The DCS at the off-resonance positionshows dominance of backward scattering. This is examined in more detail with the calculationof forward-backward asymmetry parameter. At the resonance, DCS changes its shape. This isshown at several selected resonant peaks. The present theoretical cross sections well reproduceexperimental data available for the 3s -f 3p transition.

• 社団法人日本物理学会の論文
• 1996-08-15

著者

• Nakazaki Shinobu

  Department Of Applied Physics Faculty Of Engineering Miyazaki University

• Nakazaki Shinobu

  Department Of Materials Science Faculty Of Engineering Miyazaki University

• Itikawa Y

  Tokyo Metropolitan Univ. Tokyo

• Itikawa Yukikazu

  Institute Of Plasma Physics Nagoya University

• OKAHARA Masayuki

  Department of Materials Science,Faculty of Engineering,Miyazaki University

• Okahara Masayuki

  Department Of Materials Science Faculty Of Engineering Miyazaki University

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