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Angular distributions for electron-impact excitation of Mg II, Zn II, and Cu I

Journal Article · · Phys. Rev. A; (United States)

Differential cross sections for excitation of Mg II, Zn II, and Cu I from their ground states to the first excited p and d states are calculated for the electron-impact energy range up to 100 eV. In addition, elastic angular distributions for Cu are given at 10 and 100 eV. A five-state close-coupling approximation in which 3s, 3p, 4s, 3d, and 4p states are included is used in the Mg II calculation. The 4s, 4p, 3d/sup 9/4s/sup 2/, 5s, and 4d states are included in the close-coupling calculation for Zn II, and the 4s, 3d/sup 9/4s/sup 2/, 4p, and 4d states for Cu I. For all targets, s..-->..p transitions exhibit strong forward scattering. The same is true for the ions for s..-->..d transitions, but for Cu the 6-eV results are nearly isotropic, and a maximum at 6/sup 0/ is found for higher energies.

Research Organization:
Department of Physics, Atlanta University, Atlanta, Georgia 30314
OSTI ID:
6057604
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 33:3; ISSN PLRAA
Country of Publication:
United States
Language:
English