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Electronic stopping power of slow Ne-20 ions in Au obtained from TOF-MEIS and Monte-Carlo computer simulations
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
2013 (English)In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, ISSN 0168-583X, Vol. 315, 26-29 p.Article in journal, Meeting abstract (Refereed) Published
Abstract [en]

The electronic stopping power of slow Ne ions (v > 0.6 a.u. per nucleon, i.e. 180 keV) in polycrystalline Au was investigated in a backscattering approach. Spectra were recorded in a Time-Of-Flight Medium-Energy Ion Scattering (TOF-MEIS) experiment using a gold thin film of several nm thickness deposited on Si. The stopping power was extracted from fitting energy converted TOF-spectra by Monte-Carlo simulations for the ion trajectories. This permits an accurate disentanglement of elastic losses and inelastic losses which are due to nuclear collisions and interactions of the ion with the electronic system of the solid, respectively. The resulting electronic stopping cross section is found to exhibit excellent velocity proportionality in the whole investigated energy range. Data is compared to other experimental datasets for similar ion energies.

Place, publisher, year, edition, pages
2013. Vol. 315, 26-29 p.
Keyword [en]
MEIS, Ne, Au, Electronic stopping power
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-213927DOI: 10.1016/j.nimb.2013.05.063ISI: 000327921300006OAI: oai:DiVA.org:uu-213927DiVA: diva2:683636
25th International Conference on Atomic Collisions in Solids (ICACS-25), October 21-25, 2012, Kyoto, Japan
Available from: 2014-01-05 Created: 2014-01-05 Last updated: 2014-01-29Bibliographically approved

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Primetzhofer, Daniel
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Applied Nuclear Physics
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