P05 imaging beamline at PETRA III: first results

Greving, Imke; Wilde, Fabian; Ogurreck, Malte; Herzen, Julia; Hammel, Jörg U.; Hipp, Alexander; Friedrich, Frank; Lottermoser, L.; Dose, T.; Burmester, Hilmar; Müller, Martin; Beckmann, Felix

doi:10.1117/12.2061768

Cited by 60 publications

(44 citation statements)

References 7 publications

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“…Parameters characterizing the degradation of the material were determined and the non‐destructive nature of SRµCT enabled the subsequent analysis of the elemental composition of the material using micro X‐ray fluorescence spectroscopy (µXRF). The presented flow cell is in its second generation and was designed for the micro‐computed tomography beamline P05 at storage ring PETRA III . The first generation flow cell was previously successfully tested at the beamlines BW2 and W2 of the storage ring DORIS III at the Deutsches Elektronen‐Synchrotron DESY …”

Section: Introductionmentioning

confidence: 99%

Quantitative characterization of degradation processes in situ by means of a bioreactor coupled flow chamber under physiological conditions using time‐lapse SRµCT

Zeller‐Plumhoff

Helmholz

Feyerabend

et al. 2017

Materials & Corrosion

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Magnesium and its alloys have in recent years emerged as a promising alternative to titanium‐based implants for medical applications due to favorable degradation properties and good biocompatibility. The degradation of materials is currently investigated by studying different samples of the same material at different time points after degradation in a medium. This study is presenting a high‐resolution time‐lapse investigation of Mg‐2Ag in culture medium using synchrotron radiation‐based micro‐computed tomography over the course of 5 days. The design of the custom‐built corrosion cell and bioreactor are described. The computed degradation rate after 5 days is in agreement with the literature. SRµCT enables the segmentation of cracks forming in the degradation layer due to stresses and hydrogen development.

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Section: Introductionmentioning

confidence: 99%

Quantitative characterization of degradation processes in situ by means of a bioreactor coupled flow chamber under physiological conditions using time‐lapse SRµCT

Zeller‐Plumhoff

Helmholz

Feyerabend

et al. 2017

Materials & Corrosion

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“…Both taxonomic groups are well suited for this research, since they are very diverse (10,000 and 40,000 described species, respectively) and possess a broad feeding spectrum (for example mycophages, phytophages, predators, saprophages, and sporophages). Tomographic data are acquired at the P05 Beamline operated by HZG at the DESY synchrotron radiation source PETRA III [45][46][47][48][49][50][51] .…”

Section: Use Case: Collaborative Research On the Insect Headmentioning

confidence: 99%

The NOVA project: maximizing beam time efficiency through synergistic analyses of SRμCT data

Schmelzle

Heethoff

Heuveline

et al. 2017

Developments in X-Ray Tomography XI

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Beamtime and resulting SRμCT data are a valuable resource for researchers of a broad scientific community in life sciences. Most research groups, however, are only interested in a specific organ and use only a fraction of their data. The rest of the data usually remains untapped. By using a new collaborative approach, the NOVA project (Network for Online Visualization and synergistic Analysis of tomographic data) aims to demonstrate, that more efficient use of the valuable beam time is possible by coordinated research on different organ systems. The biological partners in the project cover different scientific aspects and thus serve as model community for the collaborative approach. As proof of principle, different aspects of insect head morphology will be investigated (e.g., biomechanics of the mouthparts, and neurobiology with the topology of sensory areas). This effort is accomplished by development of advanced analysis tools

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“…Most important equipment for this type of interferometer is a detector system with a high spatial resolution, that allows to resolve the interference pattern directly. The microtomography endstation at the beamline P05, 7,8 operated by the Helmholtz-Zentrum Geesthacht at the synchrotron radiation storage ring PETRA III at DESY (Hamburg, Germany), reaches an effective pixel size between 0.3 µm and 2.4 µm. This is an ideal basis for high-resolution phase-contrast imaging using a single-grating interferometer.…”

Section: -3mentioning

confidence: 99%

High-resolution grating interferometer for phase-contrast imaging at PETRA III

Hipp

Herzen

Hammel³

et al. 2017

Developments in X-Ray Tomography XI

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Phase-contrast imaging has proven to be a valuable tool when investigating weak absorbing materials like soft tissue, due to its increased contrast compared to conventional absorption-contrast imaging. While propagationbased phase-contrast is an ideal tool to achieve highest resolution at a good contrast for almost not-absorbing material, it quickly comes to its limitations on applications demanding for a high dynamic range in contrast. For those applications grating-based phase-contrast is the tool of choice, although it lacks of spatial resolution compared to inline phase-contrast or attenuation-based microCT. To reduce this gap in spatial resolution we equipped the two PETRA III beamlines P05 and P07 with a customized set of mechanics to maximize the performance of the interferometer. After latest optimization steps our system allows for phase-contrast measurements in a continuous energy range between 10 keV and 80 keV. Dependent on investigated material and energy the setup is capable to achieve a spatial resolution of 5 µm on a field of view of 6.5 mm. We will present our implementation of grating-based phase-contrast computed tomography for fast and high-resolution measurements at the PETRA III along with its recent optimization, and demonstrate its performance based on different kinds of applications.

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P05 imaging beamline at PETRA III: first results

Cited by 60 publications

References 7 publications

Quantitative characterization of degradation processes in situ by means of a bioreactor coupled flow chamber under physiological conditions using time‐lapse SRµCT

Quantitative characterization of degradation processes in situ by means of a bioreactor coupled flow chamber under physiological conditions using time‐lapse SRµCT

The NOVA project: maximizing beam time efficiency through synergistic analyses of SRμCT data

High-resolution grating interferometer for phase-contrast imaging at PETRA III

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