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

AuthorsNagy, Istvan; Vincent, Rémi; Juaristi Oliden, Joseba Iñaki ; Echenique, Pedro M.
KeywordsAtom-electron collisions
Electric potential
Electron energy loss spectra
Electron gas
[PACS] Energy loss and stopping power (atoms and molecules)
Issue Date17-Jul-2008
PublisherAmerican Physical Society
CitationPhysical Review A 78, 012902 (2008)
AbstractClassical 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.
Description4 pages, 2 figures.-- PACS nrs.: 34.50.Bw.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevA.78.012902
Appears in Collections:(CFM) Artículos
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