Coherent X-ray Imaging: Bridging the Gap between Atomic and Micro-scale Investigations
Marco Stampanoni1, Andreas Menzel2, Ben Watts2
1Paul Scherrer Institute CH-5232 Villigen-PSI, Switzerland; Institute for Biomedical Engineering ETH and University of Zurich Gloriastrasse 35, CH-8092 Zürich, Switzerland. stampanoni@biomed.ee.ethz.ch.
Chimia
|October 7, 2017
Summary
State-of-the-art X-ray imaging techniques using synchrotron radiation offer high-resolution structural insights. These methods analyze diverse samples, from biological tissues to materials science applications.
Area of Science:
- Advanced materials science and condensed matter physics.
- Biophysics and soft matter research.
Background:
- Partially coherent synchrotron radiation enables novel X-ray imaging modalities.
- Traditional imaging methods have limitations in resolution and contrast.
Purpose of the Study:
- To review cutting-edge X-ray imaging techniques utilizing synchrotron radiation.
- To highlight their capabilities in structural analysis across various scientific fields.
Main Methods:
- Full-field X-ray tomography for 3D structural mapping.
- X-ray ptychography for high-resolution phase and amplitude imaging.
- Scanning small-angle X-ray scattering (SAXS) for reciprocal space analysis.
- Scanning transmission X-ray microscopy (STXM) for elemental and chemical mapping.
Main Results:
- These techniques achieve spatial resolutions from microns down to tens of nanometers.
- Contrast mechanisms include absorption, phase shifts, and spectroscopic signals.
- Demonstrated applications in biological sample imaging, foam rheology, and cement composition analysis.
Conclusions:
- Synchrotron-based X-ray imaging provides powerful tools for nanoscale structural characterization.
- The reviewed techniques offer versatile approaches to address complex scientific challenges.
- These advanced methods are crucial for progress in materials science, biology, and beyond.
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