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Laser-preparation of geometrically optimised samples for X-ray nano-CT.
Bailey, J J; Heenan, T M M; Finegan, D P; Lu, X; Daemi, S R; Iacoviello, F; Backeberg, N R; Taiwo, O O; Brett, D J L; Atkinson, A; Shearing, P R.
Affiliation
  • Bailey JJ; Department of Chemical Engineering, University College London, London, U.K.
  • Heenan TMM; Department of Chemical Engineering, University College London, London, U.K.
  • Finegan DP; Department of Chemical Engineering, University College London, London, U.K.
  • Lu X; Department of Chemical Engineering, University College London, London, U.K.
  • Daemi SR; Department of Chemical Engineering, University College London, London, U.K.
  • Iacoviello F; Department of Chemical Engineering, University College London, London, U.K.
  • Backeberg NR; Department of Earth Sciences, University College London, London, U.K.
  • Taiwo OO; Department of Chemical Engineering, University College London, London, U.K.
  • Brett DJL; Department of Chemical Engineering, University College London, London, U.K.
  • Atkinson A; Department of Materials, Royal School of Mines, Imperial College London, London, U.K.
  • Shearing PR; Department of Chemical Engineering, University College London, London, U.K.
J Microsc ; 267(3): 384-396, 2017 09.
Article in En | MEDLINE | ID: mdl-28504417
ABSTRACT
A robust and versatile sample preparation technique for the fabrication of cylindrical pillars for imaging by X-ray nano-computed tomography (nano-CT) is presented. The procedure employs simple, cost-effective laser micro-machining coupled with focused-ion beam (FIB) milling, when required, to yield mechanically robust samples at the micrometre length-scale to match the field-of-view (FOV) for nano-CT imaging. A variety of energy and geological materials are exhibited as case studies, demonstrating the procedure can be applied to a variety of materials to provide geometrically optimised samples whose size and shape are tailored to the attenuation coefficients of the constituent phases. The procedure can be implemented for the bespoke preparation of pillars for both lab- and synchrotron-based X-ray nano-CT investigations of a wide range of samples.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Microsc Year: 2017 Document type: Article Affiliation country: United kingdom
Fulltext
Add to My VHL
Print
XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Microsc Year: 2017 Document type: Article Affiliation country: United kingdom