Pankhurst, MJ;
Fowler, R;
Courtois, L;
Nonni, S;
Zuddas, F;
Atwood, RC;
Davis, GR;
(2018)
Enabling three-dimensional densitometric measurements using laboratory source X-ray micro-computed tomography.
SoftwareX
, 7
pp. 115-121.
10.1016/j.softx.2018.03.004.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Enabling three-dimensional densitometric measurements using laboratory source X-ray micro-computed tomography |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.softx.2018.03.004 |
| Publisher version: | http://dx.doi.org/10.1016/j.softx.2018.03.004 |
| Language: | English |
| Additional information: | Copyright © 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Laboratory X-ray micro-computed tomography, Beam characterisation, PythonBeam hardening, Three-dimensional densitometry |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10049111 |
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