Results 61 to 70 of about 2,592,085 (298)

Photon-counting CT: Technical Principles and Clinical Prospects.

open access: yesRadiology, 2018
Photon-counting CT is an emerging technology with the potential to dramatically change clinical CT. Photon-counting CT uses new energy-resolving x-ray detectors, with mechanisms that differ substantially from those of conventional energy-integrating ...
M. Willemink   +4 more
semanticscholar   +1 more source

Measurement of Background Energy Content of a Linear cw Colliding PulseMode-Locked Dye Laser [PDF]

open access: yes, 1991
The background energy content of a linear cw CPM rhodamine 6G-DODCI femtosecond dye laser is determined by time- resolved measurement of the Rayleigh scattered signal in a colloidal silicon dioxid suspension with an ungated inverse time- correlated ...
Bäumler, W., Penzkofer, Alfons
core   +1 more source

Y-Ba-Cu-O nanostripes for optical photon detection [PDF]

open access: yes, 2015
Nanowires of Y-Ba-Cu-O, with the thickness of 50 nm and the width ranging from 90 nm to 500 nm have been successfully grown on lanthanum aluminate substrates for photon detection experiments.
Lombardi, Floriana,   +35 more
core   +1 more source

Particle and Photon Detection: Counting and Energy Measurement

open access: yesSensors, 2016
Fundamental limits for photon counting and photon energy measurement are reviewed for CCD and CMOS imagers. The challenges to extend photon counting into the visible/nIR wavelengths and achieve energy measurement in the UV with specific read noise ...
James Janesick, John Tower
doaj   +1 more source

Compact-eight channel photon counting module with monolithic array detector

open access: yes, 2007
We present a multichannel photon counting module that exploits a monolithic array of single-photon avalanche diodes (SPADs). The detector array consists of eight 50μm diameter SPADs featuring low dark counting rate and high photon detection efficiency ...
MARANGONI, STEFANO   +9 more
core   +1 more source

Compressive Reconstruction Based on Sparse Autoencoder Network Prior for Single-Pixel Imaging

open access: yesPhotonics, 2023
The combination of single-pixel imaging and single photon-counting technology enables ultra-high-sensitivity photon-counting imaging. In order to shorten the reconstruction time of single-photon counting, the algorithm of compressed sensing is used to ...
Hong Zeng   +6 more
doaj   +1 more source

Compact CMOS analog readout circuit for photon counting applications

open access: yes, 2013
The design, simulation results and experimental characterization of a compact analog readout circuit for photon counting applications are presented in this paper.
Ekaterina Panina   +8 more
core   +1 more source

Spectral Photon-Counting CT Technology in Chest Imaging

open access: yesJournal of Clinical Medicine, 2021
The X-ray imaging field is currently undergoing a period of rapid technological innovation in diagnostic imaging equipment. An important recent development is the advent of new X-ray detectors, i.e., photon-counting detectors (PCD), which have been ...
S. Si-Mohamed   +8 more
semanticscholar   +1 more source

Mutant p53R273H disrupts PDPK1 homodimerization and contributes to PDPK1 activation

open access: yesMolecular Oncology, EarlyView.
How mutant p53R273H drives AKT signaling is unclear. We show that p53R273H, but not wild‐type, directly binds PDPK1 via a mutation‐dependent conformational change. This interaction disrupts inhibitory PDPK1 homodimerization and enhances AKT phosphorylation.
Mei Chee Lim   +11 more
wiley   +1 more source

Photon Counting Detectors for X-Ray Imaging With Emphasis on CT

open access: yesIEEE Transactions on Radiation and Plasma Medical Sciences, 2021
X-ray imaging is a widely used imaging modality in the medical diagnostic field due to its availability, low cost, high spatial resolution, and fast image acquisition. X-ray photons in standard X-ray sources are polychromatic.
Rafael Ballabriga   +12 more
semanticscholar   +1 more source

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