Total Born-approximation cross sections for single-electron loss by atoms and ions colliding with atoms. [MeV range]

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.16.19· OSTI ID:7304586

Rule, D W

The first Born approximation (FBA) is applied to the calculation of single-electron-loss cross sections for various ions and atoms containing from one to seven electrons. Screened hydrogenic wave functions are used for the states of the electron ejected from the projectile, and Hartree-Fock elastic and incoherent scattering factors are used to describe the target. The effect of the target atom on the scaling of projectile ionization cross sections with respect to the projectile nuclear charge is explored in the case of hydrogenlike ions. Also examined is the scaling of the cross section with respect to the target nuclear charge for electron loss by Fe/sup +25/ in collision with neutral atoms ranging from H to Fe. These results are compared to those of the binary-encounter approximation (BEA) and to the FBA for the case of ionization by completely stripped target ions. Electron-loss cross sections are also calculated for the ions O/sup +//sup i/ (i = 3--7) and N/sup +//sup i/ (i = 0--6) in collision with He targets in the energy range of approx. 0.1 to 100 MeV/nucleon. These results are found to be in excellent agreement with the available data near the peak of the ionization cross section.

• Research Organization: National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, Maryland 20771
• OSTI ID: 7304586
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 16:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOMIC IONS
BORN APPROXIMATION
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELECTRIC CHARGES
ELECTRON LOSS
ELEMENTS
FLUIDS
FUNCTIONS
HARTREE-FOCK METHOD
HELIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
IRON IONS
NITROGEN IONS
NONMETALS
OXYGEN IONS
RARE GASES
WAVE FUNCTIONS