SKM 2023 – wissenschaftliches Programm

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 6: Poster

KFM 6.24: Poster

Dienstag, 28. März 2023, 17:00–19:00, P3

Analysis of Structural Materials with Coincident Doppler Broadening Spectroscopy Using New Evaluation Software — •Leon Chryssos, Vassily Burwitz, and Christoph Hugenschmidt — Heinz Maier-Leibnitz Zentrum (MLZ), Technical University of Munich, Lichtenbergstr. 1, 85748 Garching, Germany

Coincident Doppler Broadening Spectroscopy (CDBS) of the 511 keV electron positron annihilation line not only provides defect sensitive studies of materials, but also elemental signatures at the positron annihilation site. This enables the analysis of foreign atoms in the host matrix, vacancy-solute complexes and precipitates in solids. Using a new data analysis software several structural materials were evaluated at the recently upgraded CDB spectrometer at the NEutron induced POsitron source MUniCh (NEPOMUC). The most important features of the software will be explained. The functionality of the experiment and analysis software will be evaluated using several structural materials including AlCu alloys and W single crystals.