Results 21 to 30 of about 11,359 (235)

InGaAs x-ray photodiode for spectroscopy

Materials Research Express, 2020
A prototype In _0.53 Ga _0.47 As p ^+ -i-n ^+ x-ray photodiode, fabricated from material grown by metalorganic vapour phase epitaxy, was investigated as a novel detector of x-rays.
M D C Whitaker, G Lioliou, A B Krysa, A M Barnett   +3 more
doaj   +1 more source

A low‐offset low‐power and high‐speed dynamic latch comparator with a preamplifier‐enhanced stage

IET Circuits, Devices and Systems, 2021
The preamplifier module is a crucial element while designing dynamic latch comparators. The traditional double tail comparator utilizes a differential pair as the preamplifier stage.
Jérôme K. Folla, Maria L. Crespo, Evariste T. Wembe, Mohammad A. S. Bhuiyan, Andres Cicuttin, Bernard Z. Essimbi, Mamun B. I. Reaz   +6 more
doaj   +1 more source

A dual‐rate burst‐mode receiver with rapid response and high CID tolerance for XGS PON

Electronics Letters, 2021
A burst‐mode receiver chip‐set including a preamplifier and limiting amplifier which can recover both 9.95 Gb/s and 2.49 Gbit/s packets within a short 64.3 ns preamble time is described in this paper.
Takanori Kawanaka, Satoshi Yoshima, Masaki Noda   +2 more
doaj   +1 more source

Wave Detection in Acceleration Plethysmogram [PDF]

Healthcare Informatics Research, 2015
ObjectivesAcceleration plethysmogram (APG) obtained from the second derivative of photoplethysmography (PPG) is used to predict risk factors for atherosclerosis with age.
Jae Mok Ahn
doaj   +1 more source

Design of Fission Chamber Pulse Pre-amplifier

Journal of Isotopes
Fission chambers are installed in the measurement channels within the reactor and the signals are transmitted via inorganic and organic cables. They can be used for monitoring the neutron flux of the reactor from startup to full power operation.
Xinyi HUANG, Fangdong YANG, Yang LIU, Jiangbin ZHAO, Haifeng LIU, Chenyang TANG, Jiayu SUN, Zhan LIU, Gaokui HE   +8 more
doaj   +1 more source

Estimation of Fano factor for oversquare HPGe detector

Radiation Protection and Environment, 2022
Fano factor is a quantity used to measure the departure of the observed variance in the number of charge carriers produced from that predicted using poison statistics. Fano factor varies with the detector type.
M Manohari, V Sugumar, R Mathiyarasu, B Venkatraman   +3 more
doaj   +1 more source

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

Advanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee, Sofía Cruces, Xiaohua Liu, Yang Chen, Vasilis A. Maroufidis, Janghyun Jo, Lukas Völkel, Dennis Braun, Michael Möller, Leon Brackmann, Holger Kalisch, Michael Heuken, Andrei Vescan, Rafal E. Dunin‐Borkowski, Joachim Mayer, Stefan Wiefels, Max C. Lemme   +16 more
wiley   +1 more source

Reconstructing Quantum Dot Surfaces via Dual‐Functional Ligand Pairing Enables Efficient Shortwave Infrared Optoelectronics

Advanced Functional Materials, EarlyView.
This work presents a ligand‐pairing strategy that reconstructs lead sulfide quantum dot surfaces for efficient short‐wave infrared optoelectronics. A low‐reactivity thiourea precursor combined with hydrobromic acid enables monodisperse and fully passivated quantum dots.
Dongeon Kim, Minjung Yang, Yunjin Lee, Gaeun Cho, Min‐Jae Si, Jaewoo Jeong, Seoryeon Jeong, Sol‐Hee Kim, Taeho Han, Seungin Jee, Byeong‐Chan Kim, Woong Kim, Seungmin Lee, Jun Hong Noh, Han Seul Kim, Yujin Jung, Se‐Woong Baek   +16 more
wiley   +1 more source

A Hybrid RF Coil for Whole-Brain Imaging in Non-Human Primates at 7 T. [PDF]

Magn Reson Med
ABSTRACT Purpose Ultra‐high field MRI (≥ 7 T) offers unprecedented potential for mapping non‐human primate (NHP) brain function. However, complex electromagnetic systems are required to meet the challenges of UHF imaging and the mechanical demands of awake NHP studies.
Djaballah E, Giacomini É, Gapais PF, Luong M, Amadon A, Zhu Q.   +5 more
europepmc   +2 more sources

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source