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Photoionization cross-section calculation of atomic tungsten [PDF]

open access: yesPhysical Review A, 1993
A photoionization cross-section calculation of atomic tungsten is performed in the formalism of many-body perturbation theory for photon energies ranging from the ionization threshold of tungsten to 150 eV. Nonrelativistic orbitals are used in the basis set and relativistic corrections are included.
, Boyle, , Altun, , Kelly
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Atomic photoabsorption cross sections

Journal of Quantitative Spectroscopy and Radiative Transfer, 1967
Abstract Results are reported of extensive calculations on atomic photoabsorption cross sections by the statistical method in various approximations, based on developments presented in previous papers. A closely spaced family of photoabsorption cross sections emerges which, on scaling with regard to atomic numbers, represents in an unified manner the
Werner Brandt   +2 more
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Cross sections for the alkali atom-Br2 reactions

The Journal of Chemical Physics, 1973
The reaction cross sections of alkali metal atoms with bromine molecules have been obtained by direct measurements of alkali atom decay rates. The alkali atoms were produced in the presence of a known amount of bromine molecules by photodissociating the bromide of the particular alkali atom with a short pulse of uv light.
J. Maya, P. Davidovits
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Cross sections for electron scattering by atomic potassium

Physical Review A, 1992
Electron elastic and collisional excitation cross sections from the ground state of potassium are calculated using the noniterative integral-equation method of Henry, Rountree, and Smith [Comput. Phys. Commun. 23, 233 (1981)] in the electron energy range 4\ensuremath{\le}E\ensuremath{\le}200 eV. Configuration-interaction target wave functions that take
, Msezane, , Awuah, , Hiamang, , Allotey
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Nature of the dips in the atomic photoabsorption cross section

Physical Review A, 1992
It is shown that the appearance of the plateau on the atomic electron density n(r) gives rise to the dip in the photoabsorption cross section of a many-electron atom. The dip at frequency ω is formed if (a) there is a point of plasma resonance r 0 where the local plasma frequency inside the atom is equal to ω, and (b) the derivative of electron ...
, Tolstikhin, , Vinogradov
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Stopping cross-sections and atomic potentials

Radiation Effects, 1976
Abstract A strong correlation is shown to exist throughout the periodic table : etween the Z 2 dependence of the electronic stopping cross-sections for 4He ions of a given velocity and the Z dependence of the atomic potentials at a certain radius. An empirical formula is presented which allows the extrapolation of stopping cross-section data for any ...
J. C. Eckardt   +2 more
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Elastic cross sections of hydrogen atoms

Proceedings of the Physical Society, 1967
Differential and total elastic cross sections for the collision of unpolarized beams of hydrogen atoms have been evaluated for energies of the relative motion up to 0 37 ev (ka0 = 5). The cross sections have been calculated from accurate phase shifts derived from numerical integration of the radial wave equations using the interaction potentials of ...
J W Fox, E Gal
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