Results 21 to 30 of about 8,586 (257)
PLoS ONE, 2023 We present an upgraded version of the Photon Counting Toolkit (PcTK), a freely available by request MATLAB tool for the simulation of semiconductor-based photon counting detectors (PCD), which has been extended and validated to account for gallium ...
Bahaa Ghammraoui +2 more
doaj +3 more sources
Frontiers in Physics, 2023 We developed an analytical model to evaluate the effect of signal pileup on the recorded energy spectrum in X-ray photon-counting detectors affected by dead time and equipped with retrigger capability.
P. Zambon, C. Amato
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A Compact High-Speed Active Quenching and Recharging Circuit for SPAD Detectors
IEEE Photonics Journal, 2020 A compact high-speed active quenching and recharging circuit (AQRC) is proposed for single-photon avalanche diode (SPAD) detectors fabricated in standard 0.18 μm CMOS technology.
Yue Xu, Jiyuan Lu, Zhong Wu
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Single-Photon and Photon-Number-Resolving Detectors
IEEE Photonics Journal, 2012 Several important advances were reported in single-photon detectors and photon-number-resolving detectors in 2011. New materials with smaller superconducting gaps were demonstrated for superconducting nanowire single-photon detectors (SNSPDs) that led to
R. P. Mirin, S. W. Nam, M. A. Itzler
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Phasor imaging with a widefield photon-counting detector [PDF]
Journal 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
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MicroCT with energy-resolved photon-counting detectors [PDF]
Physics in Medicine and Biology, 2011 The goal of this paper was to investigate the benefits that could be realistically achieved on a microCT imaging system with an energy-resolved photon-counting x-ray detector. To this end, we built and evaluated a prototype microCT system based on such a detector.
X, Wang +7 more
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Single Photon Counting UV Solar-Blind Detectors Using Silicon and III-Nitride Materials
Sensors, 2016 Ultraviolet (UV) studies in astronomy, cosmology, planetary studies, biological and medical applications often require precision detection of faint objects and in many cases require photon-counting detection.
Shouleh Nikzad +14 more
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On-chip coherent detection with quantum limited sensitivity
Scientific Reports, 2017 While single photon detectors provide superior intensity sensitivity, spectral resolution is usually lost after the detection event. Yet for applications in low signal infrared spectroscopy recovering information about the photon’s frequency ...
Vadim Kovalyuk +11 more
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IEEE Access, 2020 The design of photon counting spectral imaging (x-CSI) X-ray detectors involves optimising many parameters including pixel thickness, pitch, and type of charge sharing correction algorithm (CSCA) employed, if any.
Oliver Len Paul Pickford Scienti +2 more
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Molecular Oncology, EarlyView.Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang +12 more
wiley +1 more source