Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Christopher C. Scott"'
Publikováno v:
Sensors, Vol 22, Iss 15, p 5890 (2022)
In this work, we investigate the potential of employing a direct conversion integration mode X-ray detector with micron-scale pixels in two different X-ray phase-contrast imaging (XPCi) configurations, propagation-based (PB) and edge illumination (EI
Externí odkaz:
https://doaj.org/article/1b0f13fc3c76477c82db2152a307e643
Publikováno v:
Quantum Beam Science, Vol 5, Iss 4, p 29 (2021)
Amorphous selenium (a-Se) is a glass-former capable of deposition at high rates by thermal evaporation over a large area. It was chosen as a direct conversion material due to its appealing properties for imaging in both low and high X-ray energy rang
Externí odkaz:
https://doaj.org/article/fcc5374358b54f019d0e85a53f2265f7
Autor:
Sam Laxer, Karim S. Karim, Michael G. Farrier, Christopher C. Scott, Antonino Miceli, Parmesh Ravi, Michael Wojcik, Peter Kenesei, Yunzhe Li
Publikováno v:
Journal of Synchrotron Radiation. 28:1081-1089
The objective of this work was to fabricate and characterize a new X-ray imaging detector with micrometre-scale pixel dimensions (7.8 µm) and high detection efficiency for hard X-ray energies above 20 keV. A key technology component consists of a mo
Autor:
Peter M. Levine, Abdallah El-Falou, Rhiannon L. Lohr, Karim S. Karim, Christopher C. Scott, Mohamed Hamid, Yun Zhe Li
Publikováno v:
IEEE Sensors Journal. 21:339-346
We present a monolithic hybrid visible-light imager composed of an amorphous selenium (a-Se) photoconductor thin film integrated on a CMOS active pixel sensor (APS) array readout integrated circuit. We achieve more than 14-dB signal-to-noise ratio un
Publikováno v:
2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Publikováno v:
2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC).
Publikováno v:
Quantum Beam Science, Vol 5, Iss 29, p 29 (2021)
Amorphous selenium (a-Se) is a glass-former capable of deposition at high rates by thermal evaporation over a large area. It was chosen as a direct conversion material due to its appealing properties for imaging in both low and high X-ray energy rang
Publikováno v:
Medical Imaging 2021: Physics of Medical Imaging.
In this work, we have used Geant4 Monte Carlo simulations to evaluate the spatial resolution and detection efficiency metrics of an amorphous selenium (a-Se) photon-counting detector for high energy gamma-ray detection with 1mm and 50µm pixel pitche
Publikováno v:
Medical Imaging 2021: Physics of Medical Imaging.
The aim of this study is to investigate and reveal the potential of employing a direct conversion amorphous selenium (a-Se) CMOS based high resolution x-ray detector in both propagation-based (PB) and edge illumination (EI) x-ray phase contrast imagi
Publikováno v:
Medical Imaging 2021: Physics of Medical Imaging.
In this work, we have evaluated the performance of a coded-aperture (edge-illumination) x-ray phase contrast imaging (CA-XPCi) system employing a high resolution x-ray detector with pixel pitch and size equal to 7.8 µm. Two of the main challenges co