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Potassium-silicate glass foil irradiated with electrons – Asymmetry in migration and space distribution given by the elastic scattering of electrons on potassium atoms
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SYSNO ASEP 0543821 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Potassium-silicate glass foil irradiated with electrons – Asymmetry in migration and space distribution given by the elastic scattering of electrons on potassium atoms Author(s) Gedeon, O. (CZ)
Jurek, Karel (FZU-D) RID, ORCID, SAINumber of authors 2 Source Title Nuclear Instruments & Methods in Physics Research Section B. - : Elsevier - ISSN 0168-583X
Roč. 502, July (2021), s. 150-156Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords potassium silicate glass ; electron irradiation ; asymmetric alkali ion distribution ; electric field assisted migration ; elastic scattering related effective force Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000678559800005 EID SCOPUS 85109081877 DOI 10.1016/j.nimb.2021.06.017 Annotation Binary potassium silicate glass 15K2O⋅85SiO2 was prepared in the form of a thin foil and was irradiated with electrons in the transmission mode. A defocused beam of 10, 20, 30, and 50 keV energy was used to prevent a significant temperature increase. Both, the front and back surfaces were depleted of potassium by the irradiation, but not to the same extent the front surface was quickly fully depleted of potassium, but the backside only partially. The potassium depth distribution was not consistent with the assumed shape of the electric field established in the solid, but was significantly shif ted from the middle of the foil. The found asymmetry is due to the momentum transfer from the elastic scattering of the incident electron to the potassium ion, which acts as an additional effective force. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1016/j.nimb.2021.06.017
Number of the records: 1