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3D x-ray computed tomography images of packed glass beads scanned at 18 resolutions (2D projections and 3D gray reconstructions)

dataset
posted on 05.05.2022, 18:24 authored by Siarhei KhirevichSiarhei Khirevich, Maxim P. Yutkin, Tadeusz W. Patzek

Note: all .rar archives here can be opened/extracted with WinRAR, 7-zip, or similar software. Each archive contains 3% recovery record, and if the downloaded file was damaged for some reason, it may be recovered using WinRAR (i.e., there is no need to download it again); this is mostly relevant for larger files in the set.

Description: 0.5mm glass beads of two types, beads1 and beads2, were packed inside glass tubes, resulting in two porous media samples “P3” and “P4”. These two samples were scanned at 18 discretization resolutions (or 18 voxel sizes) using x-ray computed tomography to obtain three-dimensional images of their pore space. Each file is a rar-archive named as %N%_res%R%_mu%M%_proj, where %N% is the sample name, P3 or P4, %R% is the resolution (in voxels per average bead diameter, ~470micron for beads1 and ~541micron for beads2), and %M% is the corresponding voxel size in microns. Inside each archive there are 2D projections and 3D reconstruction (in “recon” folder) of the samples. Each root folder contains one or several scan%V_POS% folders with %V_POS% indicating a vertical position of the x-ray source in micrometers. Each higher resolution archive contains several scan%V_POS% folders corresponding to individual overlapping scan segments, each with its own 2D projections and 3D reconstruction. Such archives also contain “images” folder with a single file “merged data.tif” showing a central slice along the full reconstructed geometry. Almost all CT scan settings can be found in .txt files for each segment. Dark and flat images are “di000000.tif” and “io000000.tif”, respectively. Merge result for each multiple-segment scan is available in a separate figshare+ item.

One may download a smaller file first (say, “p3_res10_mu47_proj.rar”) to get an idea about the content of each archive: other archives are similar, and differ only in the scanning resolution.


Related data sets:

https://doi.org/10.25452/figshare.plus.16821412

https://doi.org/10.25452/figshare.plus.16867417

Funding

KAUST to Ali Al-Naimi Petroleum Engineering Research Center

History

Research Institution(s)

King Abdullah University of Science and Technology

Contact email

khirevich@gmail.com

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