Enabling three-dimensional densitometric measurements using laboratory source X-ray micro-computed tomography
Volume
7
Pagination
115 - 121
DOI
10.1016/j.softx.2018.03.004
Journal
SoftwareX
Metadata
Show full item recordAbstract
© 2018 The Authors We present new software allowing significantly improved quantitative mapping of the three-dimensional density distribution of objects using laboratory source polychromatic X-rays via a beam characterisation approach (c.f. filtering or comparison to phantoms). One key advantage is that a precise representation of the specimen material is not required. The method exploits well-established, widely available, non-destructive and increasingly accessible laboratory-source X-ray tomography. Beam characterisation is performed in two stages: (1) projection data are collected through a range of known materials utilising a novel hardware design integrated into the rotation stage; and (2) a Python code optimises a spectral response model of the system. We provide hardware designs for use with a rotation stage able to be tilted, yet the concept is easily adaptable to virtually any laboratory system and sample, and implicitly corrects the image artefact known as beam hardening.
Authors
Pankhurst, MJ; Fowler, R; Courtois, L; Nonni, S; Zuddas, F; Atwood, RC; Davis, GR; Lee, PDURI
https://www.sciencedirect.com/science/article/pii/S2352711018300360http://qmro.qmul.ac.uk/xmlui/handle/123456789/44265