| About this Abstract |
| Meeting |
TMS Specialty Congress 2025
|
| Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
| Presentation Title |
Laboratory-Based 3D X-Ray Scattering Tensor Tomography |
| Author(s) |
Azat Slyamov, Adriaan van Roosmalen, Kenneth Nielsen, Erik M. Lauridsen |
| On-Site Speaker (Planned) |
Erik M. Lauridsen |
| Abstract Scope |
Scattering (dark-field) X-ray microscopy methods advance fiber orientation analysis by mapping anisotropic structures without direct resolution, enabling an extended field of view (FOV). Two primary technologies—scanning small-angle scattering and full-field linear grating interferometry—have been used for fiber composites and biological materials. However, both methods have disadvantages with acquisition overhead: scanning methods require a focused beam to raster scan the sample, while linear gratings require linear and rotational shifts for 2D orientation sensitivity. A recent innovation using circular grating unit cells overcomes these limitations by enabling single-shot 2D orientation mapping. Each unit cell in the 2D grid provides localized scattering data, effectively simulating raster scanning, while the circular shape captures 2D orientation sensitivity in one frame. This approach, integrated into the Exciscope Polaris platform, allows for efficient in-lab X-ray tensor tomography (XTT). We successfully validate this technology against synchrotron results and demonstrate its applications in technological and biological composite materials. |
| Proceedings Inclusion? |
Undecided |