Ionization dynamics in fast ion-atom collisions. I. Energy and angular distributions of low-energy electrons emitted in ionization of He by bare carbon ions

Lokesh C. Tribedi, P. Richard, Y. D. Wang, C. D. Lin, L. Gulyás, M. E. Rudd

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Abstract

We have studied the two-center effect (TCE) in ion-atom ionization by measuring the energy and angular distributions of the double-differential cross sections (DDCSs) (d2σ/dεdΩ) of the low-energy electrons emitted in a collision of He atoms with 2.5 MeV/nucleon C6+ ions. The electrons with energies between 0.1 and 300 eV were detected for 13 different emission angles between 15° and 160°. From the measured DDCSs we have deduced the single differential cross sections such as dσ/dΩ and dσ/dε and the total cross section. The data have been compared with the continuum distorted wave eikonal initial state calculations with H-like and Hartree-Fock-Slater wave functions for the initial and final state of the electron and first Born calculations. The forward-backward asymmetry parameter also has been deduced to study the TCE in detail. In the following paper [Lokesh C. Tribedi et al., Phys. Rev. A 58, 3626 (1998)] we have explored the collision dynamics by deducing the momentum distributions of the electron, the recoil ion, and the projectile.

Original languageEnglish
Pages (from-to)3619-3625
Number of pages7
JournalPhysical Review A
Volume58
Issue number5
Publication statusPublished - Nov 1998

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energy distribution
angular distribution
electron energy
ionization
collisions
carbon
cross sections
atoms
ions
recoil ions
electrons
projectiles
asymmetry
wave functions
continuums
momentum
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Ionization dynamics in fast ion-atom collisions. I. Energy and angular distributions of low-energy electrons emitted in ionization of He by bare carbon ions. / Tribedi, Lokesh C.; Richard, P.; Wang, Y. D.; Lin, C. D.; Gulyás, L.; Rudd, M. E.

In: Physical Review A, Vol. 58, No. 5, 11.1998, p. 3619-3625.

Research output: Contribution to journalArticle

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AU - Lin, C. D.

AU - Gulyás, L.

AU - Rudd, M. E.

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