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Theoretical Analysis of Topotomography Using Small Intragranular Strain Approximations
Zheheng Liu, Nicola Vigano, Henry Proudhon, Wolfgang Ludwig
https://arxiv.org/abs/2510.08712

Theoretical Analysis of Topotomography Using Small Intragranular Strain Approximations
Topo-Tomography (TT) is a synchrotron-based X-ray diffraction imaging technique used to characterize grain shape and crystal orientation in polycrystalline samples. This work aims to provide a decisive and fundamental understanding of 3D grain shape and orientation field reconstruction from TT diffraction data. We derive mathematical expressions for the TT projection geometry, considering grain shape, intragranular lattice rotations, and elastic strains, under the assumption of kinematical diff…

Crosslisted article(s) found for physics.app-ph. https://arxiv.org/list/physics.app-ph/new
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- Theoretical Analysis of Topotomography Using Small Intragranular Strain Approximations
Zheheng Liu, Nicola Vigano, Henry Proudhon, Wolfgang Ludwig