Algorithms for three-dimensional chemical analysis via multi-energy synchrotron X-ray tomography
The conversion of X-ray tomography images into three-dimensional chemical composition requires accurate mass absorption values, high-quality images, and a robust fitting algorithm. The least-squares fits of the images to a three-dimensional chemical composition can proceed with several different options such as minimal vs. over-determined and/or constrained parameters. This project has investigated the impact of XAFS features and a limited CCD dynamic range. These simulated results are compared to a recent experimental project in which synchrotron X-ray tomography was used to image a polymer blend, and from those images, calculated three-dimensional chemical composition maps of the two-component flame retardant, a brominated phthalimide dimer, Saytex™ BT-93 and a synergist, antimony(III) oxide (Sb2O3). © 2007 Elsevier B.V. All rights reserved.
Publication Source (Journal or Book title)
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Ham, K., & Butler, L. (2007). Algorithms for three-dimensional chemical analysis via multi-energy synchrotron X-ray tomography. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 262 (1), 117-127. https://doi.org/10.1016/j.nimb.2007.04.300