3D Grain Reconstruction from Boxscan Data

A. Lyckegaard*, A. Alpers, W. Ludwig, R.W. Fonda, L. Margulies, A. Goetz, H. O. Sorensen, S. R. Dey, H. F. Poulsen, E. M. Lauridsen

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    A method for reconstructing the 3D shape of a single grain in a polycrystal from far-field diffraction data is presented. The reconstruction is performed using an iterative algorithm, algebraic reconstruction technique (ART), to solve a linear system of equations obtained from data from the Boxscan technique. The Boxscan technique is a 3D X-ray diffraction type scanning technique, which in geometric tomography terms provides 2-dimensional X-rays of the object as data. In this paper, we report on the first experimental 3D grain shape reconstruction based on a beta-titanium sample. By comparing our results to high resolution phase contrast tomography, we find that the average error on the position of the grain boundary in this sample is 2.7 micrometers for a grain radius of 17 micrometers. This result is similar to other current methods.
    Original languageEnglish
    Title of host publicationProceedings of the 31th Risø International Symposium on Materials Science : Challenges in Materials Science and Possibilities in 3d and 4d Characterization Techniques
    Number of pages8
    Publication date2010
    Pages329-336
    ISBN (Print)8755038336
    Publication statusPublished - 2010
    Event31st Risø International Symposium on Materials Science : Challenges in materials science and possibilities in 3D and 4D characterization techniques - Risø DTU, Roskilde, Denmark
    Duration: 6 Sept 201010 Sept 2010

    Conference

    Conference31st Risø International Symposium on Materials Science : Challenges in materials science and possibilities in 3D and 4D characterization techniques
    LocationRisø DTU
    Country/TerritoryDenmark
    CityRoskilde
    Period06/09/201010/09/2010
    SeriesProceedings of the Risø International Symposium on Materials Science
    ISSN0907-0079

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