Radiographic data of a wooden block with metal markers at the FleX-ray laboratory (high resolution)

Summary

This submission contains radiographic data containing metal markers of a small wooden block.  

The data is made available as part of [Bossema et al., 2024].

Apparatus

The dataset is acquired using the custom-built and highly flexible CT scanner, FleX-ray Laboratory, developed by TESCAN-XRE, located at CWI in Amsterdam. This apparatus consists of a cone-beam microfocus X-ray point source that projects polychromatic X-rays onto a 1944-by-1536 pixels, 14-bit, flat detector panel. Full details can be found in [Coban 2020].

List of Contents

The content of the submission is given below. All raw data (i.e. no corrections) is made available in .tif format.

The data folder contains:

• darkfield  image, di000000.tif,
• flatfield  image before acquisition, io000000.tif, and after acquisition, io000001.tif,
• raw (unprocessed or uncorrected) projections, scan_*.tif,
• data settings XRE.txt, a text file with scanner metadata,
• scan settings.txt, a text file with scanner metadata in more human readable format, and
• data settings XRE.ini, a snapshot text file of basic geometry information at the start of a scan.
• script_executed.txt, the text file containing the list of commands the apparatus has executed.

Additional Links

These datasets are produced by the Computational Imaging group at Centrum Wiskunde & Informatica (CI-CWI). For any relevant Python/MATLAB scripts for the FleX-ray datasets, we refer the reader to our group's GitHub page.

Contact Details

For more information or guidance in using these datasets, please get in touch with 

• bossema [at] cwi.nl

Acknowledgments

The authors would like to acknowledge the funding from the Netherlands Organisation for Scientific Research (NWO), project numbers 341-60-001, 639.073.506 and 628.007.033 and Netherlands Institute for Conservation, Art and Science (NICAS).

References

S. B. Coban, F. Lucka, W. J. Palenstijn, D. Van Loo, and K. J. Batenburg, “Explorative imaging and its implementation at the FleX-ray Laboratory,” J. Imaging, vol. 6, no. 18, 2020, doi: 10.3390/jimaging6040018.

Bossema, F.G., Palenstijn, W.J., Heginbotham, A. et al. Enabling 3D CT-scanning of cultural heritage objects using only in-house 2D X-ray equipment in museums. Nat Commun 15, 3939 (2024). https://doi.org/10.1038/s41467-024-48102-w