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Atomic photoabsorption cross sections
Journal of Quantitative Spectroscopy and Radiative Transfer, 1967Abstract 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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Positron-atom doubly differential ionization cross sections
Physical Review A, 1994Doubly differential ionization cross sections for positron impact on argon atoms were determined by energy- and angle-resolved measurements of ejected electrons in time correlation with the produced ions. Corresponding measurements with incident electrons were made for comparison.
, Schmitt +4 more
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Total atomic photoelectric cross-sections
Il Nuovo Cimento B Series 10, 1969Total atomic photoelectric cross-sections have been obtained by the subtraction technique for the elements Cu, Mo, Ag, Sn, W, Au, Pb and U in the energy region 20 to 1330 keV; and compared with the tabulated theoretical predictions of Schmickley and Pratt. It has been found that, in general, there is satisfactory agreement between the two.
K. Parthasaradhi, S. Ramamurty
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A Survey of Photon Cross Section Data for use in EPICS2017
, 2018I have presented here my Survey of Atomic Photon Cross Section Data for use in EPICS2017. There are few original results of in this report; most of the original work was done by those who put together the compilations that I used; one being my own EPDL ...
D. Cullen
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Stopping cross-sections and atomic potentials
Radiation Effects, 1976Abstract 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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Maximum Ionization Cross Section of Atoms
The Journal of Chemical Physics, 1969Various theoretical approaches for estimation of maximum ionization cross sections have been discussed and three new relations have been developed and used to evaluate maximum cross sections. Mann's calculations have been critically examined, and the present results have been compared with available experimental results.
Prabhakar Tiwari +2 more
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Elastic cross sections of hydrogen atoms
Proceedings of the Physical Society, 1967Differential 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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Photoionization cross sections of atomic ions
Journal of Electron Spectroscopy and Related Phenomena, 2002Abstract Experimental techniques for photoionisation measurements on atomic ions are described, and recent progress in the measurement of absolute photoionisation cross sections is reviewed. The complementary contributions of the two main experimental methods, merged beam and dual laser produced plasma (DLPP), pointing out both the problems and ...
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Photoionization cross-sections for atomic oxygen
Planetary and Space Science, 1992Abstract The R-matrix method is used to obtain cross-sections for the photoionization of atomic oxygen from the 2s22p43P state of O to the 2s22p34So, 2Do, 2Po and 2s2p44P, 2P states of O+. Ea for the 4So and the 2Do O+ states are shown to be reliable but the present results reveal considerable discrepancies for the other final ion states, in ...
K.L. Bell, R.P. Stafford
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Rydberg-atom-Rydberg-atom ionisation cross sections
Journal of Physics B: Atomic and Molecular Physics, 1979A four-body classical-trajectory Monte Carlo method has been applied to Rydberg-atom-Rydberg-atom scattering problems. Numerical calculations were conducted over the velocity range ve/3 to 3v2 where v2(au)=1/n and n is the principal quantum number of the Rydberg atom.
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