Results 31 to 40 of about 4,853 (175)

Silicon Photomultipliers for Deep Tissue Cerenkov Emission Detection During External Beam Radiotherapy

open access: yesIEEE Photonics Journal, 2019
Cerenkov Emission (CE) during external beam radiation therapy (EBRT) from a linear accelerator (Linac) has been demonstrated as a useful tool for radiotherapy quality assurance and potentially other applications for online tracking of tumors during ...
Ibrahim Oraiqat   +10 more
doaj   +1 more source

Electronics and Detectors for the Stellar Intensity Interferometer of the ASTRI Mini-Array Telescopes

open access: yesSensors, 2023
The ASTRI Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics (INAF) that will operate nine telescopes to perform Cherenkov and optical stellar intensity interferometry (SII) observations.
Giovanni Bonanno   +14 more
doaj   +1 more source

Simulations of the breakdown characteristics of n-on-p backside-illumination Silicon Photomultipliers by TCAD

open access: yesResults in Physics, 2018
This paper investigates, using Synopsys Sentaurus TCAD simulation, the dependence of the breakdown voltage of n-on-p backside-illumination Silicon Photomultipliers (BSI-SiPM) on the implantation dose, the implantation energy and the screening SiO2 ...
Ran He   +7 more
doaj   +1 more source

Signal Pre-Equalization in a Silicon Photomultiplier-Based Optical OFDM System

open access: yesIEEE Access, 2021
In this article, the performance of a new time domain signal pre-equalization method for use with optical orthogonal frequency division multiplexing (OFDM) and a silicon photomultiplier (SiPM) based receiver is studied.
Cuiwei He, Zubair Ahmed, Steve Collins
doaj   +1 more source

TRITIUM - A Quasi Real-Time Low Activity Tritium Monitor for Water [PDF]

open access: yesEPJ Web of Conferences, 2020
Tritium is released abundantly to the environment by nuclear power plants (NPP), as a product of neutron capture by hydrogen and deuterium. In normal running conditions, released cooling waters may contain levels of tritium close to or even larger than ...
Azevedo C.D.R.   +20 more
doaj   +1 more source

Exceptional Electro‐Optic Coefficient Unlocked via Polarization Swaying in KNbO3 Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
We present the largest reported electro‐optic response in any material to date, guided by a new design principle that exploits ultralow coercive field polarization swaying enabled by low‐symmetry ferroelectric phases in monoclinic KNbO3 thin films for energy‐efficient classical and quantum photonic integrated circuits. ABSTRACT The electro‐optic effect
Sankalpa Hazra   +11 more
wiley   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Influence of optical radiation parameters on the amplitude characteristics of silicon photoelectron multipliers

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
At present, silicon photoelectronic multipliers with a low voltage, high sensitivity in the visible and near infrared spectral regions, and large amplification factors are often used to record optical radiation in a wide range of intensities of the ...
M. A. Asayonak   +3 more
doaj   +1 more source

Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots

open access: yesAdvanced Materials, EarlyView.
A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler   +7 more
wiley   +1 more source

Silicon Photomultipliers: Characterization and Applications

open access: yes, 2012
Silicon Photo-Multipliers (SiPMs henceover) are photo-detectors based on a technology originally invented in Russia (Akindinov et al., 1997). They essentially consist of an array of p-n junctions operated beyond the breakdown voltage (McKay, 1954), in a Geiger-Muller (G-M) regime (Oldham et al., 1972), with typical gain of the order of 106 and on-cell ...
Ramilli, M   +4 more
openaire   +3 more sources

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