Tomography with energy dispersive diffraction

Stuart R Stock*, J. S. Okasinski, R. Woods, J. Baldwin, T. Madden, O. Quaranta, A. Rumaiz, T. Kuczewski, J. Mead, T. Krings, P. Siddons, A. Miceli, J. D. Almer

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

X-ray diffraction can be used as the signal for tomographic reconstruction and provides a cross-sectional map of the crystallographic phases and related quantities. Diffraction tomography has been developed over the last decade using monochromatic x-radiation and an area detector. This paper reports tomographic reconstruction with polychromatic radiation and an energy sensitive detector array. The energy dispersive diffraction (EDD) geometry, the instrumentation and the reconstruction process are described and related to the expected resolution. Results of EDD tomography are presented for two samples containing hydroxyapatite (hAp). The first is a 3D-printed sample with an elliptical crosssection and contains synthetic hAp. The second is a human second metacarpal bone from the Roman-era cemetery at Ancaster, UK and contains bio-hAp which may have been altered by diagenesis. Reconstructions with different diffraction peaks are compared. Prospects for future EDD tomography are also discussed.

Original languageEnglish (US)
Title of host publicationDevelopments in X-Ray Tomography XI
EditorsGe Wang, Bert Muller
PublisherSPIE
ISBN (Electronic)9781510612396
DOIs
StatePublished - Jan 1 2017
EventDevelopments in X-Ray Tomography XI 2017 - San Diego, United States
Duration: Aug 8 2017Aug 10 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10391
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherDevelopments in X-Ray Tomography XI 2017
CountryUnited States
CitySan Diego
Period8/8/178/10/17

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Keywords

  • Bone
  • Diffraction tomography
  • Energy dispersive diffraction
  • Hydroxyapatite
  • Tomography
  • X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Stock, S. R., Okasinski, J. S., Woods, R., Baldwin, J., Madden, T., Quaranta, O., Rumaiz, A., Kuczewski, T., Mead, J., Krings, T., Siddons, P., Miceli, A., & Almer, J. D. (2017). Tomography with energy dispersive diffraction. In G. Wang, & B. Muller (Eds.), Developments in X-Ray Tomography XI [103910A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10391). SPIE. https://doi.org/10.1117/12.2274567