Mirashi, V.U., Kockelmann, W., Kapur, N. orcid.org/0000-0003-1041-8390 et al. (7 more authors) (2025) Exploring spatial resolution enhancements on IMAT for steel corrosion studies. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, 1073. 170284. ISSN 0168-9002
Abstract
Neutron imaging offers benefits over X-rays for steel corrosion studies including deep penetration and high sensitivity to some light elements such as hydrogen. However, the resolution is frequently at or below the thickness of the corroded layer. This work demonstrates two approaches to enhance the spatial resolution on IMAT at the ISIS neutron source. The first approach shows that a fiber optics taper attached to an optical camera box for white beam imaging can achieve a spatial resolution down to 15 μm. The second approach uses event centroiding with a Timepix3-based detector for diffraction contrast imaging achieving a spatial resolution of 30 μm. These results support advances in corrosion and degradation studies of steel using neutron imaging.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2025 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: | Neutron imaging; Corrosion; Spatial resolution; IMAT; Fiber optics taper; Timepix |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > SWJTU Joint School (Leeds) |
Funding Information: | Funder Grant number STFC (Science and Technology Facilities Council) Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Feb 2025 17:00 |
Last Modified: | 28 Feb 2025 17:00 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.nima.2025.170284 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:223873 |