Results 21 to 30 of about 52,107 (307)

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

Simulation of Target Tracking based on Photon-counting Laser Ranging System

open access: yesGuangtongxin yanjiu, 2022
As the single photon detection greatly improves the sensitivity of a traditional detector, it has enormous potentiality in distance measuring. Photon-counting laser ranging is able to extract the target's trajectory from large amounts of echo information
JIANG Yan   +5 more
doaj   +3 more sources

Counting Photons in the Λ-Experiment [PDF]

open access: yesOpen Systems & Information Dynamics, 2002
Dehmelt's Λ-experiment for a three-level atom with simultaneously driven strong and weak transition is studied within quantum stochastic calculus approach. The statistics of the emitted photons is found by the method of generating functional of the corresponding two-dimensional output counting process.
openaire   +3 more sources

Efficient and Noise Robust Photon-Counting Imaging with First Signal Photon Unit Method

open access: yesPhotonics, 2021
Efficient photon-counting imaging in low signal photon level is challenging, especially when noise is intensive. In this paper, we report a first signal photon unit (FSPU) method to rapidly reconstruct depth image from sparse signal photon counts with ...
Kangjian Hua   +4 more
doaj   +1 more source

The Future Arrived: Photon-Counting Detector CT. [PDF]

open access: yes, 2023
In the past decades, we have witnessed tremendous technical innovations in computed tomography (CT) imaging. These included improvements in temporal and spatial resolution, lowering of the radiation dose, the introduction of dual-energy and multi-energy ...
Runge, Val   +4 more
core   +1 more source

Low-noise CMOS SPAD arrays with in-pixel time-to-digital converters [PDF]

open access: yes, 2022
Paper 91140CWe present our latest results concerning CMOS Single-Photon Avalanche Diode (SPAD) arrays for high-throughput parallel single-photon counting. We exploited a high-voltage 0.35 µm CMOS technology in order to develop low-noise CMOS SPADs.
Zou, Yu   +11 more
core   +1 more source

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

Single photon source characterization with a superconducting single photon detector [PDF]

open access: yes, 2005
Superconducting single photon detectors (SSPD) based on nanopatterned niobium nitride wires offer single photon counting at fast rates, low jitter, and low dark counts, from visible wavelengths well into the infrared.
Mirin, R.P.   +6 more
core   +1 more source

Synchronous Clock Recovery of Photon-Counting Underwater Optical Wireless Communication Based on Deep Learning

open access: yesPhotonics, 2022
In photon-counting underwater optical wireless communication (UOWC), the recovery of the time slot synchronous clock is extremely important, and it is the basis of symbol synchronization and frame synchronization.
Haodong Yang   +5 more
doaj   +1 more source

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