Dresden 2009 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 6: Materials Design II
MM 6.4: Talk
Monday, March 23, 2009, 12:45–13:00, IFW D
Differential phase contrast setup for a non coherent beamline at HASYLAB using hard x-ray grating interferometer — •Julia Herzen1, Felix Beckmann1, Tilman Donath2, Christian David2, Franz Pfeiffer2,3, Christian Grünzweig2, Astrid Haibel1, and Andreas Schreyer1 — 1GKSS Research Centre, Geesthacht, Germany — 2Paul Scherrer Institute, Villigen PSI, Switzerland — 3EPF Lausanne, Lausanne, Switzerland
Phase-contrast imaging is a common technique to visualize soft tissue with much higher contrast than the conventional absorption-contrast imaging. Differential phase contrast (DPC), developed at PSI, Switzerland, makes use of a hard x-ray grating interferometer and allows for phase-contrast imaging with high brilliance synchrotron sources as well as with conventional x-ray tubes. It is recently reported also to provide dark field information that is very sensitive to micro structures like porosity within the materials [1]. Here we present the plans to adopt the DPC technique to the HARWI-II materials science beamline [2], operated by GKSS Research Centre, in cooperation with DESY, Hamburg. This will offer an amount of new applications especially in the field of materials science like for example characterizing new light weight materials like magnesium and studying its corrosion as implant material. [1] F. Pfeiffer, M. Bech, O.Bunk, P. Kraft, E. F. Eikenberry, CH. Brönnimann, C. Grünzweig, and C. David, Nature Materials 7, pp.134-137 (2008). [2] F. Beckmann, T. Donath, J. Fischer, T. Dose, T. Lippmann, L. Lottermoser, R. V. Martins, and A. Schreyer, Proc. of SPIE Vol. 6318, 631810 (2006).