Dr. Richard Thompson Profile

Dr. Richard Thompson

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Publications (11)

Proceedings Article | 1 April 2024 Poster + Paper

Dose-efficient characterization of coronary artery plaques with a prototype CdZnTe-based photon-counting CT scanner

Thomas Wesley Holmes, Patrick Gleason, Shobhit Sharma, Kurt Schultz, Steven Ross, Shuoxing Wu, Thomas Labno, Ruoqiao Zhang, Richard Thompson, Zhou Yu, Amir Pourmorteza

Proceedings Volume 12925, 1292530 (2024) https://doi.org/10.1117/12.3008650

KEYWORDS: Photon counting, Scanners, Iodine, X-ray computed tomography, Arteries, Contrast agents

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Proceedings Article | 7 April 2023 Presentation + Paper

A study of crosstalk effect in pixelated photon counting detectors and impact to system imaging performance

Xiaohui Zhan, Shuoxing Wu, Ilmar Hein, Nikolay Markov, Ruoqiao Zhang, Brent Budden, Cameron Clarke, Yi Qiang, Zhou Yu, Richard Thompson, Hiroaki Miyazaki, Hiroaki Nakai

Proceedings Volume 12463, 124630C (2023) https://doi.org/10.1117/12.2654374

KEYWORDS: Crosstalk, Modulation transfer functions, Imaging systems, Photon counting, Spatial resolution, Design and modelling

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Proceedings Article | 1 March 2019 Paper

CZT modeling for photon counting computer tomography

Xiaochun Lai, Liang Cai, Kevin Zimmerman, Maduri Kaul, Xiaohui Zhan, Yi Qiang, Mattew Veale, Richard Thompson

Proceedings Volume 10948, 109484G (2019) https://doi.org/10.1117/12.2512531

KEYWORDS: Sensors, X-rays, Photon counting, Computed tomography, X-ray detectors

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Proceedings Article | 1 March 2019 Paper

Simulation of scattered radiation with various anti-scatter grid designs in a photon counting CT

Xiaohui Zhan, Kevin Zimmerman, Liang Cai, Xiaochun Lai, Madhuri Kaul, Richard Thompson

Proceedings Volume 10948, 109484Q (2019) https://doi.org/10.1117/12.2512494

KEYWORDS: Photon counting, Monte Carlo methods, X-ray computed tomography, Computed tomography, Physics

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Proceedings Article | 1 March 2019 Paper

Scatter correction with a deterministic integral spherical harmonics method in computed tomography

Yujie Lu, Zhou Yu, Xiaohui Zhan, Richard Thompson

Proceedings Volume 10948, 109485L (2019) https://doi.org/10.1117/12.2512306

KEYWORDS: Scattering, Computer simulations, X-ray computed tomography, Algorithm development

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Proceedings Article | 1 March 2019 Paper

Photon-counting detector simulation: Monte-Carlo energy deposition, physics-based charge transport and current induction, and SPICE electronics

Kevin Zimmerman, Liang Cai, Xiaochun Lai, Richard Thompson

Proceedings Volume 10948, 109484H (2019) https://doi.org/10.1117/12.2512245

KEYWORDS: Sensors, Monte Carlo methods, Device simulation, Electronics, Photodetectors, Computer simulations, Clouds, Electrons, Software development, X-ray computed tomography

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Proceedings Article | 9 March 2018 Paper

Optimization-based design for artifact reduction in advanced diagnostic CT

Dan Xia, Yan Liu, Zhou Yu, Buxin Chen, Richard Thompson, Emil Sidky, Xiaochuan Pan

Proceedings Volume 10573, 105734A (2018) https://doi.org/10.1117/12.2292054

KEYWORDS: Reconstruction algorithms, Diagnostics, Image restoration, Computed tomography, Data modeling, Optimization (mathematics), Detection and tracking algorithms, Sensors, Scanners, Head

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Proceedings Article | 9 March 2017 Paper

A deterministic integral spherical harmonics method for scatter simulation in computed tomography

Yujie Lu, Yu Zou, Xiaohui Zhan, Zhou Yu, Richard Thompson

Proceedings Volume 10132, 101322H (2017) https://doi.org/10.1117/12.2254145

KEYWORDS: Monte Carlo methods, Spherical lenses, Numerical analysis, Error analysis, X-ray sources, Sensors, Rayleigh scattering, Photons, Scattering, Compton scattering, X-ray computed tomography

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Proceedings Article | 3 March 2012 Paper

Modeling scattered radiation from dose compensator in CT by forced detection Monte Carlo simulation

Negar Bazargani, Richard Thompson, Yoad Yagil

Proceedings Volume 8313, 83132L (2012) https://doi.org/10.1117/12.911514

KEYWORDS: Sensors, Monte Carlo methods, Photons, Solids, X-rays, Image quality, Collimation, Collimators, Computer simulations, X-ray detectors

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Proceedings Article | 22 March 2010 Paper

Improved CT image quality using a new fully physical imaging chain

Jens Wiegert, Matthias Bertram, Steffen Wiesner, Richard Thompson, Kevin Brown, Thomas Morton, Tsvi Katchalski, Yoad Yagil

Proceedings Volume 7622, 76221I (2010) https://doi.org/10.1117/12.844564

KEYWORDS: Image quality, Collimation, Sensors, Computed tomography, Scanners, Image quality standards, Monte Carlo methods, Liver, Image processing, Medicine

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Proceedings Article | 3 March 2006 Paper

Novel features of the x-ray scatter profile that are not modeled by convolution of the primary

J. Eric Tkaczyk, Yves Trousset, Deborah Walter, Yanfeng Du, Richard Thompson, Daniel Harrison

Proceedings Volume 6142, 614232 (2006) https://doi.org/10.1117/12.653747

KEYWORDS: Sensors, Convolution, Lead, 3D modeling, Bone, X-rays, Signal detection, Data modeling, Scatter measurement, Monte Carlo methods

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Showing 5 of 11 publications

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