Results 21 to 30 of about 944,632 (294)

A High-Speed and High-Sensitivity Photon-Counting Communication System Based on Multichannel SPAD Detection

open access: yesIEEE Photonics Journal, 2021
In order to achieve high-speed, high-sensitivity optical communication over long distances and high attenuation channels, we propose a photon-counting communication system based on the detection of multichannel single-photon avalanche diodes (SPADs ...
Guanhua Wen   +5 more
doaj   +1 more source

Photon-counting x-ray detectors for CT

open access: yesPhysics in Medicine & Biology, 2021
Abstract The introduction of photon-counting detectors is expected to be the next major breakthrough in clinical x-ray computed tomography (CT). During the last decade, there has been considerable research activity in the field of photon-counting CT, in terms of both hardware development and theoretical understanding of the factors ...
Mats Danielsson   +2 more
openaire   +3 more sources

Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength [PDF]

open access: yes, 2007
We demonstrate subcentimeter depth profiling at a stand off distance of 330m using a time-of-flight approach based on time-correlated single-photon counting.
Nam, Sae Woo   +13 more
core   +1 more source

Image Denoising and Ring Artifacts Removal for Spectral CT via Deep Neural Network

open access: yesIEEE Access, 2020
The spectral computed tomography (CT) based on photon counting detectors can collect the incident photons with different energy ranges. However, due to the low photon counts in narrow energy bin and the unhomogeneous response problem of detector cells ...
Xiaojie Lv   +8 more
doaj   +1 more source

Measurement of the inclusive isolated prompt photon cross section in pp collisions at √s=7  TeV with the ATLAS detector [PDF]

open access: yes, 2010
A measurement of the cross section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy [sqrt]s=7  TeV is presented. The measurement covers the pseudorapidity ranges |etaγ|
G. Khoriauli   +999 more
core   +7 more sources

Advantages of Photon-Counting Detector CT in Aortic Imaging

open access: yesTomography, 2023
Photon-counting Computed Tomography (PCCT) is a promising imaging technique. Using detectors that count the number and energy of photons in multiple bins, PCCT offers several advantages over conventional CT, including a higher image quality, reduced ...
Chiara Zanon   +10 more
doaj   +1 more source

FLASH LiDAR SINGLE PHOTON IMAGING OVER 50 KM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
In order to demonstrate the feasibility of single-photon imaging of flash lidar in the permanent shadow area of the moon, a set of space-based single-photon imaging system is designed, including the lidar based on VCSEL array, the optical emitting system
Z. Q. Xia
doaj   +1 more source

Aluminum–Titanium Bilayer for Near-Infrared Transition Edge Sensors

open access: yesSensors, 2016
Transition-edge sensors (TESs) are single photon detectors attractive for applications in quantum optics and quantum information experiments owing to their photon number resolving capability.
Lapo Lolli   +4 more
doaj   +1 more source

Study of NaI(Tl) detector dosimetry response based on Spector-Dosimetry method using MCNPX code [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2022
Gamma ray measurement in various research fields requires high efficient detectors. In photon dosimetry, NaI(Tl) scintillation detector as one of the inorganic scintillation detector is noticeable, due to have the high amount of light output.
S.M. Taheri Balanoji   +2 more
doaj   +1 more source

Phasor imaging with a widefield photon-counting detector [PDF]

open access: yesJournal of Biomedical Optics, 2012
Fluorescence lifetime can be used as a contrast mechanism to distinguish fluorophores for localization or tracking, for studying molecular interactions, binding, assembly, and aggregation, or for observing conformational changes via Förster resonance energy transfer (FRET) between donor and acceptor molecules.
Ryan A, Colyer   +5 more
openaire   +2 more sources

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