Andrew Townsend

ORCID: 0000-0002-1215-3018
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About
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Research Areas
  • Methane Hydrates and Related Phenomena
  • Seismic Waves and Analysis
  • Ionosphere and magnetosphere dynamics
  • Geophysics and Gravity Measurements
  • Seismology and Earthquake Studies
  • Earthquake Detection and Analysis
  • Additive Manufacturing Materials and Processes
  • Advanced X-ray and CT Imaging
  • Additive Manufacturing and 3D Printing Technologies
  • Nuclear Physics and Applications
  • Medical Imaging Techniques and Applications
  • Manufacturing Process and Optimization
  • Radiation Detection and Scintillator Technologies
  • Radiation Dose and Imaging
  • Welding Techniques and Residual Stresses
  • Surface Roughness and Optical Measurements
  • Advanced Measurement and Metrology Techniques
  • Laser Material Processing Techniques
  • GNSS positioning and interference
  • Digital Radiography and Breast Imaging
  • 3D Shape Modeling and Analysis
  • Seismic Imaging and Inversion Techniques
  • Radiomics and Machine Learning in Medical Imaging
  • Metallurgy and Cultural Artifacts
  • Machine Learning in Materials Science

Environmental Molecular Sciences Laboratory
2021-2025

Lawrence Livermore National Laboratory
2020-2024

University of Huddersfield
2016-2020

Engineering and Physical Sciences Research Council
2016-2020

Many applications that exploit the manufacturing flexibility of additive (AM) produce surfaces, primarily internal features, which cannot be measured using conventional contact or line-of-sight optical methods. This paper evaluates capability a novel technique to extract areal surface data from micro-focus X-ray computed tomography (XCT) AM components and then generate parameter per ISO 25178-2. non-destructive evaluation features has potential advantages during product research commercial...

10.1016/j.precisioneng.2016.12.008 article EN cc-by Precision Engineering 2016-12-29

This paper presents the results of CT-STARR (CT-Surface Texture for Additive Round Robin) Stage 1 interlaboratory comparison. The study compared obtained extraction areal surface texture data per ISO 25178-2 from five X-ray computed tomography (CT) volume measurements each four laboratories. Two Ti6Al4V ELI (extra-low interstitial) components were included in CT acquisitions. first component was an additively manufactured (AM) cube using Arcam Q10 electron beam melting (EBM) machine. Surface...

10.1016/j.addma.2018.08.013 article EN cc-by Additive manufacturing 2018-08-16
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