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Kossel interferences of proton-induced X-ray emission lines in periodic multilayers

Abstract : The Kossel interferences generated by characteristic x-ray lines produced inside a periodic multilayer have been observed upon proton irradiation, by submitting a Cr/B4C/Sc multilayer stack to 2 MeV protons and observing the intensity of the Sc and Cr Kα characteristic emissions as a function of the detection angle. When this angle is close to the Bragg angle corresponding to the emission wavelength and period of the multilayer, an oscillation of the measured intensity is detected. The results are in good agreement with a model based on the reciprocity theorem. The combination of the Kossel measurements and their simulation, will be a useful tool to obtain a good description of the multilayer stack and thus to study nanometer-thick layers and their interfaces.
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https://hal.archives-ouvertes.fr/hal-01374375
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Submitted on : Monday, December 5, 2016 - 1:14:40 PM
Last modification on : Wednesday, February 26, 2020 - 1:40:03 PM
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Meiyi Wu, Karine Le Guen, Jean-Michel André, Vita Ilakovac, Ian Vickridge, et al.. Kossel interferences of proton-induced X-ray emission lines in periodic multilayers. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2016, 386 (1), pp.39 - 43. ⟨10.1016/j.nimb.2016.09.014⟩. ⟨hal-01374375v3⟩

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