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  Diffraction tomography and Rietveld refinement of a hydroxyapatite bone phantom

Frølich, S., Leemreize, H., Jakus, A., Xiao, X., Shah, R., Birkedal, H., et al. (2016). Diffraction tomography and Rietveld refinement of a hydroxyapatite bone phantom. Journal of Applied Crystallography, 49(1), 103-109. doi:10.1107/S1600576715022633.

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Frølich, S., Author
Leemreize, H.1, Author           
Jakus, A., Author
Xiao, X., Author
Shah, R., Author           
Birkedal, H., Author
Almer, J. D., Author
Stock, S. R., Author
Affiliations:
1Yael Politi, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863297              

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Free keywords: X-ray diffraction tomography, Rietveld refinement, hydroxyapatite, bone
 Abstract: A model sample consisting of two different hydroxyapatite (hAp) powders was used as a bone phantom to investigate the extent to which X-ray diffraction tomography could map differences in hAp lattice constants and crystallite size. The diffraction data were collected at beamline 1-ID, the Advanced Photon Source, using monochromatic 65 keV X-radiation, a 25 x 25 microm pinhole beam and translation/rotation data collection. The diffraction pattern was reconstructed for each volume element (voxel) in the sample, and Rietveld refinement was used to determine the hAp lattice constants. The crystallite size for each voxel was also determined from the 00.2 hAp diffraction peak width. The results clearly show that differences between hAp powders could be measured with diffraction tomography.

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 Dates: 2016
 Publication Status: Published in print
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 Identifiers: DOI: 10.1107/S1600576715022633
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Title: Journal of Applied Crystallography
  Abbreviation : J. Appl. Cryst.
Source Genre: Journal
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Publ. Info: Oxford : Blackwell
Pages: - Volume / Issue: 49 (1) Sequence Number: - Start / End Page: 103 - 109 Identifier: ISSN: 0021-8898