Journal Article

IMPULSE-2025-00082

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Exploring spatial resolution enhancements on IMAT for steel corrosion studies

Mirashi, V. U. ; Kockelmann, W. ; Kapur, N. ; Fedrigo, A. ; Morgano, M. ; Chulapakorn, T. ; Losko, A.MLZ* ; Wolfertz, A.MLZ* ; Tremsin, A. S. ; Matamoros-Veloza, A. (Corresponding author)

2025
Elsevier [Amsterdam]

Please use a persistent id in citations: doi:10.1016/j.nima.2025.170284

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.

Keyword(s): Engineering, Industrial Materials and Processing (1st) ; Industrial Application (2nd) ; Instrument and Method Development (2nd) ; Materials Science (2nd)

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Contributing Institute(s):

1. NECTAR (NECTAR)

Research Program(s):

1. 05K22WO5 - Entwicklung eines Szintillationsdetektors im ns-Bereich mit µm-Auflösung (BMBF-05K22WO5) (BMBF-05K22WO5)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2025

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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