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Energy-dispersive X-ray diffraction using an annular beam

Dicken, A. J.; Evans, J. P.O.; Rogers, K. D.; Greenwood, C.; Godber, S. X.; Prokopiou, D.; Stone, N.; Clement, J. G.; Lyburn, I.; Martin, R. M.; Zioupos, P.

Authors

A. J. Dicken

J. P.O. Evans

K. D. Rogers

C. Greenwood

S. X. Godber

D. Prokopiou

N. Stone

J. G. Clement

I. Lyburn

R. M. Martin



Abstract

We demonstrate material phase identification by measuring polychromatic diffraction spots from samples at least 20 mm in diameter and up to 10 mm thick with an energy resolving point detector. Within our method an annular X-ray beam in the form of a conical shell is incident with its symmetry axis normal to an extended polycrystalline sample. The detector is configured to receive diffracted flux transmitted through the sample and is positioned on the symmetry axis of the annular beam. We present the experiment data from a range of different materials and demonstrate the acquisition of useful data with sub-second collection times of 0.5 s; equating to 0.15 mAs. Our technique should be highly relevant in fields that demand rapid analytical methods such as medicine, security screening and non-destructive testing.

Citation

Dicken, A. J., Evans, J. P., Rogers, K. D., Greenwood, C., Godber, S. X., Prokopiou, D., Stone, N., Clement, J. G., Lyburn, I., Martin, R. M., & Zioupos, P. (2015). Energy-dispersive X-ray diffraction using an annular beam. Optics express, 23(10), 13443-13454. https://doi.org/10.1364/OE.23.013443

Journal Article Type Article
Acceptance Date May 10, 2015
Online Publication Date May 13, 2015
Publication Date May 18, 2015
Deposit Date Oct 24, 2023
Publicly Available Date Nov 13, 2023
Journal Optics Express
Print ISSN 1094-4087
Publisher Optica
Peer Reviewed Peer Reviewed
Volume 23
Issue 10
Pages 13443-13454
DOI https://doi.org/10.1364/OE.23.013443
Public URL https://hull-repository.worktribe.com/output/4424521

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Publisher Licence URL
http://creativecommons.org/licenses/by-nc/4.0

Copyright Statement
© 2015 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.





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