Izvorni znanstveni članak

Ionization of atoms in encounter with atomic projectiles

R. Das ; Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, INDIA
S. Sahoo ; Institute of Material Science, Univ. of Tsukuba, Ibaraki 305-8573, JAPAN
K. Roy ; Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, INDIA

Sažetak

Ionization of mono-electron and multi-electron target atoms has been studied at different impact energies ranging from 5 to 1000 keV using Born approximation. Total cross-sections for the ionization of H, He and Ne in collision with atomic projectiles such as H and He are reported. For the bound state wave functions of He and Ne, simplifications are made by assuming that the atom has single active electron and is influenced by an effective potential due to the passive electrons and the residual core. We represent the bound state wave functions by Slater type orbitals obtained from the model potential. In the final channel, we consider the continuum state wave function is centered around the ionized site of the target atom. The results thus obtained are compared with other theoretical predictions as well as with experimental data. On comparing, reasonably good agreements have been found in the intermediate and high energy region.

Ključne riječi

Ionization; bound state wave function; continuum state wave function; multi-electron target atoms; Slater type orbitals; model potential

Hrčak ID:

301099

URI

https://hrcak.srce.hr/301099

Datum izdavanja:

1.7.2001.

Podaci na drugim jezicima: hrvatski

Posjeta: 641 *