Search Results - "Avachat, Ashish"

Ortho-positronium lifetime for soft-tissue classification by Avachat, Ashish V., Mahmoud, Kholod H., Leja, Anthony G., Xu, Jiajie J., Anastasio, Mark A., Sivaguru, Mayandi, Di Fulvio, Angela

“…The objective of this work is to showcase the ortho-positronium lifetime as a probe for soft-tissue characterization. We employed positron annihilation…”
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Looking Inside a Prototype Compact X-Ray Tube Comprising CNT-Based Cold Cathode and Transmission-Type Anode by Avachat, Ashish V, Tucker, Wesley W, Giraldo, Carlos H. C, Pommerenke, David, Lee, Hyoung K

“…In this article, we offer a look inside our prototype compact X-ray tube by reporting on our findings when we experimentally studied it. We studied the…”
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Particle-In-Cell Simulations of Electron Focusing for a Compact X-Ray Tube Comprising CNT-Based Electron Source and Transmission Type Anode by Avachat, Ashish V., Tucker, Wesley W., Giraldo, Carlos H. C., Lee, Hyoung K.

“…For real-time computed tomography (CT), a temporal resolution lower than 30 ms is required, which cannot be delivered by conventional CT architectures with a…”
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A source biasing and variance reduction technique for Monte Carlo radiation transport modeling of emission tomography problems by Kilby, Seth, Jin, Zhongmin, Avachat, Ashish, Kanies, Bryant, Woolstenhulme, Nicholas, Lee, Hyoung K., Graham, Joseph

“…A numerical radiation transport methodology for predicting gamma emission tomographs was developed utilizing the deterministic fuel burn-up software, ORIGEN,…”
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Correction to: A source biasing and variance reduction technique for Monte Carlo radiation transport modeling of emission tomography problems by Kilby, Seth, Jin, Zhongmin, Avachat, Ashish, Kanies, Bryant, Woolstenhulme, Nicolas, Lee, Hyoung K., Graham, Joseph

“…In the original article, Equation 4 was incorrectly published. The correct equation is provided in this correction…”
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Design and development of a neutron/X-ray combined computed tomography system at Missouri S&T by Sinha, Vaibhav, Avachat, Ashish V., Lee, Hyoung K.

“…A new method for non-destructive analysis has been developed using a combined neutron/X-ray imaging system at the Missouri Science & Technology Reactor (MSTR)…”
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Simulation study of electron beam optics for a distributed X-ray source toward stationary CT architecture by Fox, Jordan, Lee, Hyoung K., Alajo, Ayodeji B., Avachat, Ashish

“…For computed tomography (CT) imaging to be considered “real time”, one set of tomographic projections are to be acquired in less than 30 ms. Current…”
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Investigating the robustness of a deep learning-based method for quantitative phase retrieval from propagation-based x-ray phase contrast measurements under laboratory conditions by Deshpande, Rucha, Avachat, Ashish, Brooks, Frank J, Anastasio, Mark A

“…Quantitative phase retrieval (QPR) in propagation-based x-ray phase contrast imaging of heterogeneous and structurally complicated objects is challenging under…”
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Accelerated radiation transport modeling techniques for pencil beam computed tomography using gamma rays by Jin, Zhongmin, Kilby, Seth, Avachat, Ashish, Kanies, Bryant, Woolstenhulme, Nicolas, Lee, Hyoung K., Graham, Joseph

“…Monte Carlo radiation transport modeling studies were performed for a compact, and high-resolution gamma-ray computed tomography system designed for imaging…”
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Multi-modal tomographic imaging system for poolside characterization of nuclear test fuels: Design considerations and studies by Kilby, Seth, Fletcher, Jack, Avachat, Ashish, Jin, Zhongmin, Imholte, Devin, Woolstenhulme, Nicolas, Lee, Hyoung-Koo, Graham, Joseph

“…Testing and qualification of advanced nuclear fuels involve an iterative process of prototyping, in-pile irradiation testing, and in/ex situ examination. Fuel…”
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Multi-modal tomographic imaging system for poolside characterization of nuclear test fuels: Design considerations and studies by Kilby, Seth, Fletcher, Jack, Avachat, Ashish, Jin, Zhongmin, Imholte, Devin D., Woolstenhulme, Nicolas E., Lee, Hyoung-Koo, Graham, Joseph

“…Testing and qualification of advanced nuclear fuels involves an iterative process of prototyping, in-pile irradiation testing, and in-situ or ex-situ…”
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Comparison of a semi-analytic variance reduction technique to classical Monte Carlo variance reduction techniques for high aspect ratio pencil beam collimators for emission tomography applications by Kilby, Seth, Fletcher, Jack, Jin, Zhongmin, Avachat, Ashish, Imholte, Devin, Woolstenhulme, Nicolas, Lee, Hyoung K., Graham, Joseph

“…A semi-analytic variance reduction technique developed for collimated gamma emission tomography problems was compared to classic Monte Carlo variance reduction…”
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Design and Development of a Compact X-Ray Tube for Stationary CT Architecture by Avachat, Ashish Vighnahar

“…Multisource architectures enable sweeping one or more x-ray beams across the imaging field-of-view faster than physically moving a single x-ray source and/or a…”
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Investigating the robustness of a learning-based method for quantitative phase retrieval from propagation-based x-ray phase contrast measurements under laboratory conditions by Deshpande, Rucha, Avachat, Ashish, Brooks, Frank J, Anastasio, Mark A

“…Quantitative phase retrieval (QPR) in propagation-based x-ray phase contrast imaging of heterogeneous and structurally complicated objects is challenging under…”
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Ortho-positronium Lifetime For Soft-tissue Classification by Avachat, Ashish V, Mahmoud, Kholod H, Leja, Anthony G, Xu, Jiajie J, Anastasio, Mark A, Sivaguru, Mayandi, Di Fulvio, Angela

“…Scientific Reports 14.1 (2024): 21155 The objective of this work is to showcase the ortho-positronium lifetime as a probe for soft-tissue characterization. We…”
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