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

Abstract : 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.
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Submitted on : Monday, June 8, 2020 - 2:32:56 PM
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István Nagy, Rémi Vincent, Joseba Iñaki Juaristi, Pedro M. Echenique. Energy-loss straggling of swift heavy ions in an electron gas. Physical Review A, American Physical Society, 2008, 78 (1), ⟨10.1103/PhysRevA.78.012902⟩. ⟨hal-02860579⟩



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