Dr. Cale E. Lewis Profile

Dr. Cale E. Lewis

at The Aerospace Corp

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Publications (7)

Proceedings Article | 13 March 2024 Presentation

Unsupervised data clustering for material separation in spectral x-ray radiography with energy-resolving photon counting detectors

Alexandra Jalali, Cale Lewis

Proceedings Volume PC12903, PC129030G (2024) https://doi.org/10.1117/12.3006957

KEYWORDS: Radiography, X-rays, X-ray detectors, Photon counting, X-ray imaging, Principal component analysis, Nondestructive evaluation, Image segmentation, Image quality, X-ray computed tomography

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Proceedings Article | 14 October 2022 Presentation + Paper

Cone-beam computed laminography for flexible three-dimensional analysis of stacked microvias in multilayer printed circuit boards

Cale Lewis, Neil Ives, Gary Stupian

Proceedings Volume 12242, 122421D (2022) https://doi.org/10.1117/12.2628973

KEYWORDS: Sensors, X-ray computed tomography, Image quality, X-rays, X-ray sources, Nondestructive evaluation, Computed tomography, Inspection, Image resolution, Imaging systems

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Proceedings Article | 3 April 2019 Presentation + Paper

Single-exposure contrast enhanced spectral mammography

Raul Torrico, Amar Kavuri, Cale Lewis, Mini Das

Proceedings Volume 10948, 1094802 (2019) https://doi.org/10.1117/12.2513515

KEYWORDS: Sensors, Iodine, Mammography, Signal attenuation, Breast, Signal to noise ratio, Tissues, Photon counting, Breast imaging, X-rays, Dual energy imaging

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Proceedings Article | 13 March 2019 Paper

Contribution of scatter and beam hardening to phase contrast imaging

Cale Lewis, Ivan Vazquez, Stefano Vespucci, Mini Das

Proceedings Volume 10948, 109485G (2019) https://doi.org/10.1117/12.2513512

KEYWORDS: Sensors, Phase contrast, X-rays, Absorption, Signal attenuation, Polymethylmethacrylate, X-ray imaging, Phase measurement, X-ray sources, Beam propagation method, Compton scattering

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Proceedings Article | 9 March 2018 Presentation + Paper

Examining phase contrast sensitivity to signal location and tissue thickness in breast imaging

Stefano Vespucci, Cale Lewis, Chan Soo Park, Mini Das

Proceedings Volume 10573, 1057324 (2018) https://doi.org/10.1117/12.2294968

KEYWORDS: Polymethylmethacrylate, X-rays, Coded apertures, Phase contrast, X-ray imaging, Signal detection, Tissues, Breast, Sensors, Free space

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Proceedings Article | 9 March 2017 Paper

Impact of Compton scatter on material decomposition using a photon counting spectral detector

Cale Lewis, Chan-Soo Park, Nathaniel Fredette, Mini Das

Proceedings Volume 10132, 101323T (2017) https://doi.org/10.1117/12.2256106

KEYWORDS: Photon counting, Sensors, Signal attenuation, Compton scattering, Distortion, Materials processing, Composites, Photoelectric effect, X-rays, Cones, Polymethylmethacrylate, Error analysis, Aluminum, Statistical analysis, Databases

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Proceedings Article | 9 March 2017 Presentation + Paper

A multi-step method for material decomposition in spectral computed tomography

Nathaniel Fredette, Cale Lewis, Mini Das

Proceedings Volume 10132, 101321C (2017) https://doi.org/10.1117/12.2256114

KEYWORDS: Photon counting, Algorithm development, Computer simulations, Calibration, Gold, Signal attenuation, Computed tomography, Data acquisition, Chemical elements, Medical imaging, X-rays

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Showing 5 of 7 publications

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