Figure 1: 5D XANES tomography.
From: Visualization of anisotropic-isotropic phase transformation dynamics in battery electrode particles
(a) Schematic of experimental setup. A tomography data set spanning −90° to +90° is collected at each photon energy step (7,102 to 7,192 eV, 2 eV per step) across the near absorption K-edge of iron to produce chemical information for each voxel. By fitting the resulting spectra as a linear combination of spectra of end-phases, phase composition can be assigned to each voxel (shown in the right side of panel). (b) Chemical phase distribution as a function of capacity (or equivalently, time).
