Results 1 to 10 of about 51,919 (307)

Photon-counting CT review [PDF]

open access: yesPhysica Medica, 2020
Photon-counting detectors are a promising new technology for computed tomography (CT) systems. They provide energy-resolved CT data at very high spatial resolution without electronic noise and with improved tissue contrasts. This review article gives an overview of the principles of photon-counting detector CT, of potential clinical benefits and ...
Thomas Flohr   +2 more
exaly   +3 more sources

Spectral Photon-Counting Computed Tomography: A Review on Technical Principles and Clinical Applications

open access: yesJournal of Imaging, 2022
Photon-counting computed tomography (CT) is a technology that has attracted increasing interest in recent years since, thanks to new-generation detectors, it holds the promise to radically change the clinical use of CT imaging.
Mario Tortora   +5 more
doaj   +3 more sources

Photon Counting Histogram for One-Photon Excitation [PDF]

open access: yesChemPhysChem, 2003
The photon counting histogram (PCH) analysis is a fluorescence fluctuation method that is able to characterize the brightness and concentration of different fluorescent species present in a liquid sample. We find that the PCH model using a three-dimensional Gaussian observation volume profile is inadequate for fitting experimental data obtained from a ...
Mark I Wallace
exaly   +3 more sources

Photon-Counting Computed Tomography (PCCT): Technical Background and Cardio-Vascular Applications

open access: yesDiagnostics, 2023
Photon-counting computed tomography (PCCT) is a new advanced imaging technique that is going to transform the standard clinical use of computed tomography (CT) imaging. Photon-counting detectors resolve the number of photons and the incident X-ray energy
Antonella Meloni   +8 more
doaj   +3 more sources

Lensless Three-Dimensional Imaging under Photon-Starved Conditions

open access: yesSensors, 2023
In this paper, we propose a lensless three-dimensional (3D) imaging under photon-starved conditions using diffraction grating and computational photon counting method.
Jae-Young Jang, Myungjin Cho
doaj   +1 more source

Photon-counting statistics-based support vector machine with multi-mode photon illumination for quantum imaging

open access: yesScientific Reports, 2022
We propose a photon-counting-statistics-based imaging process for quantum imaging where background photon noise can be distinguished and eliminated by photon mode estimation from the multi-mode Bose–Einstein distribution.
Jin-Woo Kim   +5 more
doaj   +1 more source

Photon Counting in Astronomy

open access: yesMeasurement + Control, 1976
doaj   +2 more sources

Photon counting with a loop detector [PDF]

open access: yesOptics Letters, 2003
3 pages ...
Banaszek, K, Walmsley, I
openaire   +3 more sources

Investigation on X-ray Photocurrent Response of CdZnTe Photon Counting Detectors

open access: yesSensors, 2020
Counting rate is an important factor for CdZnTe photon counting detectors as high-flux devices. Until recently, there has been a lack of knowledge on the relationship between X-ray photocurrent response and the photon counting performance of CdZnTe ...
Yingrui Li   +5 more
doaj   +1 more source

Development and Challenge of Large Container Photon-counting Imaging Technology

open access: yesJournal of Isotopes, 2023
The photon-counting detectors with great application potential, have brought technological innovation to radiation imaging fields. With energy resolving capability, photon-counting detectors will help to enhance radiation image quality, lower radiation ...
ZHANG Huaxia;WU Zhifang
doaj   +1 more source

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