Dr. Andrew Townsend Profile

Dr. Andrew Townsend

at Lawrence Livermore National Lab

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Author

Publications (6)

Proceedings Article | 3 October 2023 Presentation + Paper

Improved image stitching method for neutron imaging of large objects with small beam size

Matthew Bisbee, Ibrahim Oksuz, Quinnan Hetrick, Nerine Cherepy, Andy Townsend, Lei Cao

Proceedings Volume 12696, 1269607 (2023) https://doi.org/10.1117/12.2677150

KEYWORDS: Tunable filters, Radiography, Image filtering, Digital filtering, Computed tomography, Spatial resolution, Scintillators

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Proceedings Article | 4 October 2022 Presentation + Paper

Experimental x-ray and fast neutron CT comparative analysis

M. G. Bisbee, A. J. Hardy, I. Oksuz, L. R. Cao, N. J. Cherepy, D. J. Schneberk, K. M. Champley, A. P. Townsend, K. J. Harke, J. V. Bernier, J. Tringe, S. Karimi

Proceedings Volume 12241, 122410E (2022) https://doi.org/10.1117/12.2635503

KEYWORDS: X-rays, Spatial resolution, Scintillators, Image segmentation, X-ray computed tomography, Signal attenuation, Nondestructive evaluation, X-ray imaging

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Proceedings Article | 4 October 2022 Presentation + Paper

Comparison of thermal and fast neutron computed tomography of complex objects by additive manufacturing and electrical discharge machining

Ibrahim Oksuz, Matt Bisbee, Nerine Cherepy, Joe Tringe, Andrew Townsend, James Hall, Lei Cao

Proceedings Volume 12241, 122410D (2022) https://doi.org/10.1117/12.2635773

KEYWORDS: Radiography, 3D image processing, Additive manufacturing, Data acquisition, Computed tomography, Scintillators, Cements, Visualization, Glasses, 3D acquisition

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Proceedings Article | 1 September 2021 Presentation + Paper

Fast neutron computed tomography of multi-material complex objects

Ibrahim Oksuz, Matt Bisbee, Nerine Cherepy, Andrew Townsend, James Hall, Joseph Nicolino, Joseph Tringe, Lei Cao

Proceedings Volume 11838, 118380L (2021) https://doi.org/10.1117/12.2595862

KEYWORDS: Radiography, 3D image reconstruction, Tungsten, 3D image processing, Scintillators, Aluminum, Data acquisition, Video, Imaging systems, Gold

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Proceedings Article | 1 September 2021 Presentation + Paper

Lens-coupled MeV x-radiography and CT with transparent ceramic GLO scintillators

N. Cherepy, Z. Seeley, D. Schneberk, C. McNamee, C. Pincus, T. Rudzik, R. Osborne, I. Phillips, J. Nicolino, J. Hall, A. Townsend, S. Payne

Proceedings Volume 11838, 118380P (2021) https://doi.org/10.1117/12.2595956

KEYWORDS: Scintillators, Radiography, Aluminum, Ceramics, X-rays, X-ray computed tomography, Cameras, Tungsten, Copper, Spatial resolution

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Proceedings Article | 2 August 2021 Presentation

Neutron transmission imaging with a portable D-T neutron generator

Phillip Kerr, Nerine Cherepy, Jennifer Church, Gary Guethlein, James Hall, Colby McNamee, Sean O’Neal, Kyle Champley, Andrew Townsend, Mayuki Ssasagawa, Anthony Hardy

Proceedings Volume 11838, 118380M (2021) https://doi.org/10.1117/12.2596473

KEYWORDS: Imaging systems, Scintillators, X-rays, X-ray imaging, Radiography, Inspection, Digital imaging, Signal attenuation, Scattering, Light

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Showing 5 of 6 publications

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