Results 11 to 20 of about 52,107 (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 ...
Stefan Ulzheimer   +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 ...
Richard Zare, Mark Ian 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

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

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

Ultra-Fast Single-Photon Counting with Waveguide-Integrated Detectors for Quantum Technologies [PDF]

open access: yes, 2022
With recent advances in quantum technologies for applications such as communication, cryptography, computing, metrology and sensing, the performance and scalability of single-photon detection as a vital key component is becoming increasingly important ...
Perlot, Nicolas   +15 more
core   +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

Photon counting carbon dioxide gas sensing at 2.05 mu m wavelength [PDF]

open access: yes, 2023
We demonstrate proof-of-principle carbon dioxide (CO2) sensing at 2.05 mu m wavelength using a commercial infrared superconducting nanowire single photon detector (SNSPD).
MacKenzie, Ewan N.,   +3 more
core   +1 more source

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