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Updated: Jun 28, 2026
10:12
Synchrotron X-ray Microdiffraction and Fluorescence Imaging of Mineral and Rock Samples
Published on: June 19, 2018
A novel multi-detection technique for three-dimensional reciprocal-space mapping in grazing-incidence X-ray
M Schmidbauer1, P Schäfer, S Besedin
1Leibniz Institut für Kristallzüchtung, Max-Born-Strasse 2, D-12489 Berlin, Germany. schmidbauer@ikz-berlin.de
Journal of Synchrotron Radiation
|October 29, 2008
Summary
A novel X-ray diffraction technique allows 3D reciprocal space mapping with a single scan using a 2D detector. This method efficiently analyzes diffuse scattering from nanostructures like quantum dots.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Crystallography
Background:
- Grazing-incidence X-ray diffraction (GIXRD) is crucial for surface and thin-film analysis.
- Mapping reciprocal space in 3D typically requires complex sample manipulation or multiple scans.
Purpose of the Study:
- To introduce a new GIXRD technique for efficient 3D reciprocal space mapping.
- To demonstrate the capability of the new method for analyzing diffuse scattering from nanostructures.
Main Methods:
- Utilizing a two-dimensional (2D) detector in a GIXRD setup.
- Performing a single rocking scan of the sample to capture 3D reciprocal space data.
Main Results:
- The new technique enables comprehensive 3D reciprocal space mapping via a single rocking scan.
- The setup's angular resolution and dynamic range of scattered intensity were evaluated.
- Diffuse scattering from strained (In,Ga)As quantum dots on a GaAs substrate was successfully measured.
Conclusions:
- The described GIXRD method offers an efficient approach for 3D reciprocal space analysis.
- This technique is well-suited for characterizing complex nanostructure systems, such as self-assembled quantum dots.
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