Results 1 to 10 of about 2,270,745 (295)

Detection efficiency of 18F-flourodeoxyglucose positron emission tomography/computed tomography for primary tumors in patients with carcinoma of unknown primary

open access: yesWorld Journal of Nuclear Medicine, 2020
Carcinoma of unknown primary (CUP) is defined as biopsy proven tumor metastases that remains unidentified after a thorough diagnostic evaluation. The purpose of this study was to find the detection efficiency of 18F-flourodeoxyglucose positron emission ...
Nosheen Fatima   +5 more
doaj   +2 more sources

Research on leak monitoring of the primary circuit of a pressurized water reactor based on the 13N coincidence method [PDF]

open access: yesNuclear Technology and Radiation Protection, 2022
To assess the characteristics of 13N decay, a monitoring method of the primary loop leakage rate based on the γ-γ coincidence method was proposed. In this work, sampling and measurement devices were designed, in which NaI (Tl) crystals were used
Zhao Yue, Qu Guo P., Zhou Jian L.
doaj   +1 more source

Aligning Superconducting Transition-Edge Sensors by Reflected Wave Intensity Measurement

open access: yesSensors, 2023
It is critical to accurately align a quantum photon detector such as a superconducting transition-edge sensor (TES) to an optical fiber in order to optimize its detection efficiency.
Pei-Sa Ma   +2 more
doaj   +1 more source

Anti-coincidence detector unit based on WLS fiber and SiPM readout

open access: yesHe jishu, 2023
BackgroundComplete kinematic measurements in the medium or high-energy region is a common experimental method to study the structure and properties of exotic nuclides on the neutron-rich side.
WANG Ke   +12 more
doaj   +1 more source

Efficient Violence Detection in Surveillance

open access: yesSensors, 2022
Intelligent video surveillance systems are rapidly being introduced to public places. The adoption of computer vision and machine learning techniques enables various applications for collected video features; one of the major is safety monitoring.
Vijeikis, Romas   +2 more
openaire   +3 more sources

SmartTrack: efficient predictive race detection [PDF]

open access: yesProceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation, 2020
Widely used data race detectors, including the state-of-the-art FastTrack algorithm, incur performance costs that are acceptable for regular in-house testing, but miss races detectable from the analyzed execution. Predictive analyses detect more data races in an analyzed execution than FastTrack detects, but at significantly higher performance cost ...
Roemer, Jake   +2 more
openaire   +2 more sources

BELL'S INEQUALITIES DETECT EFFICIENT ENTANGLEMENT [PDF]

open access: yesInternational Journal of Quantum Information, 2004
We review the status of Bell's inequalities in quantum information, stressing mainly the links with quantum key distribution and distillation of entanglement. We also prove that for all the eavesdropping attacks using one qubit, and for a family of attacks of two qubits, acting on half of a maximally entangled state of two qubits, the violation of a ...
Acin, Antonio   +3 more
openaire   +4 more sources

A mathematical model of semiconductor detector gamma-efficiency calibration for rectangular cuboid (brick-shape) sources [PDF]

open access: yesNuclear Technology and Radiation Protection, 2018
Rectangular cuboid (rectangular parallelepiped), i. e., brick-shape sources are not really common in general gamma-spectrometry practice with semiconductor detectors, where axially symmetrical sources prevail.
Mihaljević Nikola N.   +3 more
doaj   +1 more source

TrackingStorm: Visualization Tool for a Storm Detector Network (SDN) in the LF Spectrum

open access: yesBrazilian Archives of Biology and Technology, 2021
During the last year the Group of Atmospheric Electricity Phenomena (FEA/UFPR) developed a short range lightning location network based on a sensor device called Storm Detector Network (SDN), along with a set of algorithms that enables to track storms ...
Augusto Mathias Adams   +6 more
doaj   +1 more source

Calculation of alpha particles detection efficiency for polycarbonate detector using Geant4 toolkit [PDF]

open access: yesJournal of Nuclear Research and Applications, 2022
In the present work, alpha particles detection efficiency of polycarbonate detector (PC) is calculated using Geant4 simulation toolkit. A PC detector with 250 µm thickness and dimension of 2.5 × 2.5 cm2 is considered.
A. Moslehi, S. Baradaran, M. Taheri
doaj   +1 more source

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