Results 21 to 30 of about 23,612 (262)

Performance of active edge pixel sensors [PDF]

Journal of Instrumentation, 2017
To cope with the High Luminosity LHC harsh conditions, the ATLAS inner tracker has to be upgraded to meet requirements in terms of radiation hardness, pile up and geometrical acceptance. The active edge technology allows to reduce the insensitive area at the border of the sensor thanks to an ion etched trench which avoids the crystal damage produced by
Bomben, Marco, Ducourthial, Audrey, Bagolini, Alvise, Boscardin, Maurizio, Bosisio, Luciano, Calderini, Giovanni, d'Eramo, Louis, Giacomini, Gabriele, Marchiori, Giovanni, Zorzi, Nicola, Rummler, André, Weingarten, Jens   +11 more
openaire   +6 more sources

Linear-Logarithmic CMOS Image Sensor with Reduced FPN Using Photogate and Cascode MOSFET

Proceedings, 2017
We propose a linear-logarithmic CMOS image sensor with reduced fixed pattern noise (FPN). The proposed linear-logarithmic pixel based on a conventional 3-transistor active pixel sensor (APS) structure has additional circuits in which a photogate and a ...
Myunghan Bae, Byung-Soo Choi, Sang-Hwan Kim, Jimin Lee, Chang-Woo Oh, Pyung Choi, Jang-Kyoo Shin   +6 more
doaj   +1 more source

Subthreshold Operation of Photodiode-Gated Transistors Enabling High-Gain Optical Sensing and Imaging Applications

IEEE Journal of the Electron Devices Society, 2020
In optical sensors and imagers, high gain that leads to high sensitivity and high signal to noise ratio (SNR) is often desirable. One popular approach is avalanche photomultiplication initiated by impact ionization in an avalanche photodiode or similar ...
Kai Wang, Yihong Qi, Yunfeng Hu, Yangbing Xu, Yitong Xu, Jinming Liu, Xianda Zhou   +6 more
doaj   +1 more source

Modeling the Performance of Single-Bit and Multi-Bit Quanta Image Sensors

IEEE Journal of the Electron Devices Society, 2013
Imaging performance metrics of single-bit and multi-bit photo-electron-counting quanta image sensors (QIS) are analyzed using Poisson arrival statistics. Signal and noise as a function of exposure are determined.
Eric R. Fossum
doaj   +1 more source

Influence of Satellite Sensor Pixel Size and Overpass Time on Undercounting of Cerrado/Savannah Landscape-Scale Fire Radiative Power (FRP): An Assessment Using the MODIS Airborne Simulator

Fire, 2020
The fire radiative power (FRP) of active fires (AFs) is routinely assessed with spaceborne sensors. MODIS is commonly used, and its 1 km nadir pixel size provides a minimum per-pixel FRP detection limit of ~5–8 MW, leading to undercounting of AF pixels ...
Samuel Sperling, Martin J. Wooster, Bruce D. Malamud   +2 more
doaj   +1 more source

First bent wafer-scale sensor in truly-cylindrical geometry for the ALICE ITS3 detector [PDF]

EPJ Web of Conferences, 2022
An upgrade of the three innermost layers of the ALICE ITS, intended to be installed during the LHC Long Shutdown 3, is under development. The detector concept foresees the usage of curved, wafer-scale Monolithic Active Pixel Sensors.
Torres Ramos Arianna G.
doaj   +1 more source

CMOS Image Sensors for High Speed Applications

Sensors, 2009
Recent advances in deep submicron CMOS technologies and improved pixel designs have enabled CMOS-based imagers to surpass charge-coupled devices (CCD) imaging technology for mainstream applications.
M. Jamal Deen, Qiyin Fang, Louis Liu, Frances Tse, David Armstrong, Munir El-Desouki   +5 more
doaj   +1 more source

Performance of a Full-Scale Upstream MAPS-Based Verification Device for Radiotherapy

Sensors, 2023
Intensity-modulated radiotherapy is a widely used technique for accurately targeting cancerous tumours in difficult locations using dynamically shaped beams. This is ideally accompanied by real-time independent verification.
Jaap Velthuis, Yutong Li, Jordan Pritchard, Chiara De Sio, Lana Beck, Richard Hugtenburg   +5 more
doaj   +1 more source

Impact of CMOS Pixel and Electronic Circuitry in the Performance of a Hartmann-Shack Wavefront Sensor

Sensors, 2018
This work presents a numerical simulation of a Hartmann-Shack wavefront sensor (WFS) that assesses the impact of integrated electronic circuitry on the sensor performance, by evaluating a full detection chain encompassing wavefront sampling ...
Úrsula Vasconcelos Abecassis, Davies William de Lima Monteiro, Luciana Pedrosa Salles, Carlos Augusto de Moraes Cruz, Pablo Nunes Agra Belmonte   +4 more
doaj   +1 more source

Energy calibration through X-ray absorption of the DECAL sensor, a monolithic active pixel sensor prototype for digital electromagnetic calorimetry and tracking

Frontiers in Physics, 2023
In calorimetry, the predominant detection principle is to measure the energy deposited by particles within a shower initiated by an incident particle. An alternative concept is a sampling calorimeter where the highly granular active layers rather measure
Lucian Fasselt, Lucian Fasselt, Philip Patrick Allport, Seddik Benhammadi, Robert Ross Bosley, Jens Dopke, Samuel Flynn, Laura Gonella, Nicola Guerrini, Cigdem Issever, Cigdem Issever, Kostas Nikolopoulos, Ioannis Kopsalis, Peter Philips, Tony Price, Iain Sedgwick, Giulio Villani, Matt Warren, Nigel Watson, Hannsjörg Weber, Alasdair Winter, Fergus Wilson, Steven Worm, Steven Worm, Zhige Zhang   +24 more
doaj   +1 more source