Energy-loss straggling of swift heavy ions in an electron gas

István Nagy (1, 2) , Rémi Vincent (2) , Joseba Iñaki Juaristi (3) , Pedro M. Echenique

1 Technical University of Budapest
2 Donostia International Physics Center - DIPC (SPAIN)
3 ETSI - Escuela Técnica Superior de Ingenieria

Classical methods are employed to characterize the energy-loss straggling for swift, heavy ions interacting with independent electrons of a degenerate electron gas. The method of Bohr on the statistical aspects of the energy-loss process is used, and the electron-intruder collision is modeled via a finite-range screened Coulomb potential energy. The transport fluctuation cross section is calculated analytically within the framework of the impact-parameter method. Comparison with straggling data obtained for carbon foils with singly ionized carbon ions is made, and a good agreement is found in the validity range of the applied classical methods.

Domains: Engineering Sciences [physics]; Optics / Photonic

István Nagy, Rémi Vincent, Joseba Iñaki Juaristi, Pedro M. Echenique. Energy-loss straggling of swift heavy ions in an electron gas. Physical Review A : Atomic, molecular, and optical physics, 2008, 78 (1), ⟨10.1103/PhysRevA.78.012902⟩. ⟨hal-02860579⟩