X-rays offer high penetration with the potential for tomography of centimetre-sized specimens, but synchrotron beamlines often provide illumination that is only millimetres wide. Here an approach is demonstrated termed Tomosaic for tomographic imaging of large samples that extend beyond the illumination field of view of an X-ray imaging system. This includes software modules for image stitching and calibration, while making use of existing modules available in other packages for alignment and reconstruction. The approach is compatible with conventional beamline hardware, while providing a dose-efficient method of data acquisition. By using parallelization on a distributed computing system, it provides a solution for handling teravoxel-sized or larger datasets that cannot be processed on a single workstation in a reasonable time. Using experimental data, the package is shown to provide good quality three-dimensional reconstruction for centimetre-sized samples with sub-micrometre pixel size.
Vescovi, Rafael, et al. "<i>Tomosaic</i> : efficient acquisition and reconstruction of teravoxel tomography data using limited-size synchrotron X-ray beams." Journal of Synchrotron Radiation (Online), vol. 25, no. 5, Aug. 2018. https://doi.org/10.1107/S1600577518010093
Vescovi, Rafael, Du, Ming, de Andrade, Vincent, Scullin, William, Gürsoy, Dogˇa, & Jacobsen, Chris (2018). <i>Tomosaic</i> : efficient acquisition and reconstruction of teravoxel tomography data using limited-size synchrotron X-ray beams. Journal of Synchrotron Radiation (Online), 25(5). https://doi.org/10.1107/S1600577518010093
Vescovi, Rafael, Du, Ming, de Andrade, Vincent, et al., "<i>Tomosaic</i> : efficient acquisition and reconstruction of teravoxel tomography data using limited-size synchrotron X-ray beams," Journal of Synchrotron Radiation (Online) 25, no. 5 (2018), https://doi.org/10.1107/S1600577518010093
@article{osti_1465616,
author = {Vescovi, Rafael and Du, Ming and de Andrade, Vincent and Scullin, William and Gürsoy, Dogˇa and Jacobsen, Chris},
title = {<i>Tomosaic</i> : efficient acquisition and reconstruction of teravoxel tomography data using limited-size synchrotron X-ray beams},
annote = { X-rays offer high penetration with the potential for tomography of centimetre-sized specimens, but synchrotron beamlines often provide illumination that is only millimetres wide. Here an approach is demonstrated termed Tomosaic for tomographic imaging of large samples that extend beyond the illumination field of view of an X-ray imaging system. This includes software modules for image stitching and calibration, while making use of existing modules available in other packages for alignment and reconstruction. The approach is compatible with conventional beamline hardware, while providing a dose-efficient method of data acquisition. By using parallelization on a distributed computing system, it provides a solution for handling teravoxel-sized or larger datasets that cannot be processed on a single workstation in a reasonable time. Using experimental data, the package is shown to provide good quality three-dimensional reconstruction for centimetre-sized samples with sub-micrometre pixel size. },
doi = {10.1107/S1600577518010093},
url = {https://www.osti.gov/biblio/1465616},
journal = {Journal of Synchrotron Radiation (Online)},
issn = {ISSN JSYRES},
number = {5},
volume = {25},
place = {Denmark},
publisher = {International Union of Crystallography (IUCr)},
year = {2018},
month = {08}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 607, Issue 3https://doi.org/10.1016/j.nima.2009.06.030