Dataset for first resonant PXCT experiments at the SWING beamline at Synchrotron Soleil

This dataset was acquired at the SWING beamline at the French synchrotron SOLEIL. The ptychographic scans consisted of 205 diffraction patterns from a field of view of 14x12 µm² with an exposure time of 100 ms per point. The ptychographic reconstruction was carried out using the PtychoShelves Matlab software package [1], involving 200 iterations of the difference map (DM) algorithm, followed by 100 iterations of the maximum likelihood (ML) algorithm.

The dataset consists of the ptychographic reconstructions of two ptychographic tomography scans at energies 8383 eV and 8337 eV, the angle files, and the corresponding tomograms as slices.

Niwire_3D_8383 - ptychographic reconstructions of the 200 projections at 3838 eV

Niwire_3D_8337 - ptychographic reconstructions of the 210 projections at 8337 eV (10 duplicate angles)

Niwire8383_TIFF_delta_FBP_ram-lak_freqscl_1.00 - tomographic reconstruction (with PtychoShelves [2]) of the Niwire measured at 8383 eV

Niwire8337_TIFF_delta_FBP_ram-lak_freqscl_1.00 - tomographic reconstruction (with PtychoShelves [2]) of the Niwire measured at 8337 eV

angles_Niwire8383 - the angles of the tomographic scan at 8383 eV

angles_Niwire8383 - the angles of the tomographic scan at 8337 eV

[1] Wakonig, K., Stadler, H.-C., Odstrčil, M., Tsai, E. H. R., Diaz, A., Holler, M., Usov, I., Raabe, J., Menzel, A. & Guizar-Sicairos, M. (2020). PtychoShelves, a versatile high-level framework for high-performance analysis of ptychographic data. J. Appl. Cryst. 53, 574-586.

[2] Michal Odstrčil, Mirko Holler, Jörg Raabe, and Manuel Guizar-Sicairos, "Alignment methods for nanotomography with deep subpixel accuracy," Opt. Express 27, 36637-36652 (2019)