The Theory of Electron Capture

Briggs, J S

doi:10.1016/b978-0-444-86972-2.50018-6

Cited by 1 publication

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“…Here we use the Bohr-Lindhard (1954) model for scaling the electron capture cross sections, which requires knowledge of the release radius at low energies and the capture radius at high energies. For the release radius, we have followed the derivation of Briggs (1985). First, the total energy of the initial state is set equal to the maximum value of the internuclear Coulomb potential between the projectile and target atom (the saddle-point value).…”

Section: Resultsmentioning

confidence: 99%

State-selective cross section scalings for electron capture collisions

Cornelius

Wojtkowski

Olson

2000

J. Phys. B: At. Mol. Opt. Phys.

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The classical-trajectory Monte Carlo method is used to calculate total and final nf state-selective electron capture cross sections for various fully stripped ions, ranging from He2+ to Ne10+, incident on H(ni = 1-4) and Li(2s and 2p) targets over the collision energies of 1-100 keV u-1. Theoretical derivations of two scaling laws for state-selective electron capture cross sections as a function of collision energy, initial and final bound electron states and projectile charge are presented. The new scaling rules reduce the state-selective capture cross sections to very distinct universal curves. Curve fits to the state-selective cross sections are presented to provide additional information about the peak locations and magnitudes as well as the behaviour of the reduced cross sections as a function of collision energy. The scaling laws developed in this report allow for the prediction of state-selective electron capture cross sections in low-energy regions where experimental data have been limited or non-existent.

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Section: Resultsmentioning

confidence: 99%