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. 2016 Apr 28;23(Pt 3):842–849. doi: 10.1107/S1600577516005658

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© Daniël M. Pelt et al. 2016

This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

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Reconstructions of a single slice of a sample in a high-pressure diamond anvil cell which blocks 86 of the 359 projections over 180°, with 2560 detector pixels per projection. Reconstructions are computed with (a) gridrec (TomoPy), (b) and (c) SIRT with a nonnegativity constraint (ASTRA), and (d) TV-minimization using FISTA (ASTRA plugin). In (a), (c) and (d), a ring-removal pre-processing step (Münch et al., 2009 ▸) was applied using TomoPy. A line profile of the center, indicated in (a) by a dotted line, is shown for each reconstruction, as well as a cropped pixel section of the upper left part of the sample.

Inline graphic — Reconstructions of a single slice of a sample in a high-pressure diamond anvil cell which blocks 86 of the 359 projections over 180°, with 2560 detector pixels per projection. Reconstructions are computed with (a) gridrec (TomoPy), (b) and (c) SIRT with a nonnegativity constraint (ASTRA), and (d) TV-minimization using FISTA (ASTRA plugin). In (a), (c) and (d), a ring-removal pre-processing step (Münch et al., 2009 ▸) was applied using TomoPy. A line profile of the center, indicated in (a) by a dotted line, is shown for each reconstruction, as well as a cropped pixel section of the upper left part of the sample.