Title

Algorithms for three-dimensional chemical analysis via multi-energy synchrotron X-ray tomography

Document Type

Article

Publication Date

8-1-2007

Abstract

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

First Page

117

Last Page

127

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