Strong-potential Born-approximation electron-capture cross sections for realistic atomic potentials

1988 ◽  
Vol 38 (6) ◽  
pp. 3124-3127 ◽  
Author(s):  
Steven Alston
Keyword(s):  
Electron Capture ◽  
Cross Sections ◽  
Born Approximation ◽  
Capture Cross ◽  
Strong Potential ◽  
Capture Cross Sections

ELECTRON CAPTURE CROSS SECTIONS

1954 ◽  
Vol 32 (6) ◽  
pp. 393-405 ◽  
Author(s):  
Harry Schiff
Keyword(s):  
Electron Capture ◽  
Cross Section ◽  
Cross Sections ◽  
Born Approximation ◽  
Alpha Particles ◽  
Electron Interaction ◽  
Capture Cross ◽  
The Cross ◽  
Singly Charged ◽  
Capture Cross Sections

Electron capture cross sections are calculated in the first Born approximation for alpha particles passing through hydrogen and singly charged helium ions passing through helium using the complete interaction Hamiltonian. Estimations of captures into excited states are made with the help of the partial cross sections obtained in a simple closed form using only the (incident ion)−(electron) interaction. The results indicate that the first Born approximation, using the complete interaction, is quite adequate in the velocity range given by [Formula: see text]. An impact parameter calculation for protons in hydrogen shows that the cross section obtained using only the (incident ion)–(electron) interaction gives unphysical results at low velocities [Formula: see text], and that most of the contribution to the cross section arises from impact parameters p > a0, where a0 is the radius of the first Bohr orbit in hydrogen.

Double-electron-capture cross sections forLi3+collisions with He at intermediate-to-high velocities

2009 ◽  
Vol 80 (4) ◽  
Author(s):  
M. M. Sant’Anna ◽  
A. C. F. Santos ◽  
L. F. S. Coelho ◽  
Ginette Jalbert ◽  
N. V. de Castro Faria ◽  
...  
Keyword(s):  
Electron Capture ◽  
Cross Sections ◽  
Capture Cross ◽  
Double Electron Capture ◽  
Double Electron ◽  
Capture Cross Sections

scholarly journals Сечения образования ионов He-=SUP=-+-=/SUP=- в различных электронных состояниях при столкновениях ионов He-=SUP=-2+-=/SUP=- с атомами водорода

2020 ◽  
Vol 90 (6) ◽  
pp. 895
Author(s):  
А.А. Басалаев ◽  
В.В. Кузьмичев ◽  
М.Н. Панов ◽  
О.В. Смирнов
Keyword(s):  
Kinetic Energy ◽  
Electron Capture ◽  
Cross Sections ◽  
Atomic Hydrogen ◽  
Precision Measurements ◽  
Capture Cross ◽  
Hydrogen Atoms ◽  
Hydrogen Target ◽  
Degree Of Dissociation ◽  
Capture Cross Sections

Using collision spectroscopy based on precision measurements of the kinetic energy of projectile ions that capture an electron, we measured the state selective electron capture cross sections of formation of He^+(n) ions at collision 3^He^{2 +} ions with an energy of E = 1.4-10 keV/a.m.u. with hydrogen atoms. The atomic hydrogen target with a degree of dissociation 78% at a temperature of tungsten dissociation cell 2180K has been made.

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