Multiple scattering of slow ions in a free-electron gas
- Division Colisiones Atomicas, Instituto Balseiro and Centro, Atomico Bariloche, RA-8400 Bariloche (Argentina)
We study the influence of electronic scattering on the angular distributions of ions and atoms moving through a free-electron gas. We present a general formulation based on the multiple-scattering formalism, using two alternative descriptions: a linear approach based on Lindhard's dielectric function, and a nonlinear treatment based on density functional calculations. We obtain analytical expressions for the multiple-scattering function and for the half-width of the distribution. We show the results of several calculations for slow hydrogen and helium and their isotopes. We analyze the results and obtain analytical approximations for all of the cases. The magnitude of the electronic effects on the multiple scattering distribution is determined and compared with previous estimations.
- OSTI ID:
- 20786311
- Journal Information:
- Physical Review. A, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevA.72.062712; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multiple scattering of slow ions in a partially degenerate electron fluid
Theoretical analysis of multiple quantum-well, slow-light devices under applied external fields using a fully analytical model in fractional dimension