DescriptionString: Reconstructed CT slices for Spine of Stethacanthus (University of Michigan Museum of Paleontology catalog number UMMP VP 118281) as a series of TIFF images. Raw projections are not included in this dataset. The reconstructed slice data from the scan are offered here as a series of unsigned 16-bit integer TIFF images. The upper left corner of the first image (*_0000.tif) is the XYZ origin.
MethodString: Specimen UMMP VP 118281_Stethacanthus_Spine was scanned with a Nikon XT H 225ST uCT system housed in the Department of Earth and Environmental Sciences at the University of Michigan. Scans were collected with the following settings: energy settings, 195 kV, 180 uA; source to object distance, 203.198780059814 mm; source to detector distance, 1104.999 mm; scanned with 3141 projections; voxel size, x = 0.036778084664811 mm y = 0.036778084664811 mm z = 0.036778084664811 mm; slice dimension (in pixels), x = 1471, y = 485; number of slices, 1793 16-bit TIFF images. Original floating point grey values were scaled to span the unsigned 16-bit integer range using an offset of 4936.0830078125 and a scale factor of 7.7010213735181, where 16output = SCALE * (32input + OFFSET). Additional metadata can be found in the xtekct, ctprofile.xml, and UMMPCombinedMetadata.json files.
Zip folders were compressed with 7zip.
License: Usage of the associated data is restricted. The terms of use as of date of metadata creation (2024-12-12 15:37:41.165233) are included in the file _LICENSE.txt. Please see https://umorf.ummp.lsa.umich.edu/wp/ct-terms/ for current terms, as these may have changed.