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Suche nach „[G.A.B.] [Gál]“ hat 2 Publikationen gefunden
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    NachhaltigEuropan Campus Rottal-Inn

    Vortrag

    I. Rajta, G.A.B. Gál, S. Szilasi, Z. Juhász, S. Biri, M. Mátéfi-Tempfli, Stefan Mátéfi-Tempfli

    Scanning Transmission Ion Microscopy on Al2O3 Nanocapillary Arrays.

    12th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA 2010), Leipzig

    2010

    Europan Campus Rottal-Inn

    Zeitschriftenartikel

    I. Rajta, G.A.B. Gál, S. Szilasi, Z. Juhász, S. Biri, M. Mátéfi-Tempfli, Stefan Mátéfi-Tempfli

    Nanochannel alignment analysis by scanning transmission ion microscopy

    Nanotechnology, vol. 21, no. 29

    2010

    DOI: 10.1088/0957-4484/21/29/295704

    Abstract anzeigen

    In this paper a study on the ion transmission ratio of a nanoporous alumina sample is presented. The sample was investigated by scanning transmission ion microscopy (STIM) with different beam sizes. The hexagonally close-packed Al2O3 nanocapillary array, realized as a suspended membrane of 15 µm thickness, had pore diameters of ~ 215 nm and spacing of ~ 450 nm. When the proton beam size was limited to a single domain, a peak transmission ratio of 19% was observed as is expected from the geometry (~19–20%). This result points out an almost perfectly parallel alignment of the capillaries within one domain. However, for larger beam scanning areas (sampling multiple domains) the transmission ratio was reduced to 5%. The STIM analysis over an area larger than the typical domain size revealed an overall capillary angular spread of ~ 2°.