The Helmholtz-Zentrum Geesthacht, Germany, is operating the user experiments for microtomography at the beamlines P05 and P07 using synchrotron radiation produced in the storage ring PETRA III at DESY, Hamburg, Germany. Attenuation-contrast and phase-contrast techniques were established to provide an imaging tool for applications in biology, medical science and materials science. In the recent years we rebuilt the integration of imaging detectors. This allows the user to choose from a set of cameras based on different CMOS and CCD sensors. Here we will present the features of the different camera system together with the advantage for different applications. Furthermore, we rebuilt the data preprocessing before reconstruction to provide different scanning techniques to investigate samples larger than the field of view of the X-ray beam. Multi-scale tomography is realized by using different setups or to integrate a low-resolution together with a high-resolution region-of-interest invest
GEMS is the user platform of Helmholtz-Zentrum Geesthacht with a unique infrastructure for complementary research with photons and neutrons. The instruments using synchrotron radiation are operated at DESY in Hamburg, the instruments using neutrons are located at the research reactor FRM II of the Heinz Maier-Leibnitz Center (MLZ) in Garching near Munich. GEMS provides methods for applied materials research to user groups from both industry and science. At the PETRA III synchrotron storage ring of the German Electron Synchrotron (DESY), GEMS operates instruments for tomographic analyses from the micro- to the nanoscale. The high-energy tomography station of the beamline HEMS/P07 uses photon energies from 50 to 200 keV. A robot sample changer enables automated high-throughput measurements. The beamline is therefore of special interest for industrial users, especially from the metal industry sector. In this contribution we introduce the tomography set-up at HEMS and the possibilities for industrial access, together with examples for tomography of challenging highly-absorbing samples.
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