Results 31 to 40 of about 3,914,148 (156)

Characterization of a Mass-Produced SiPM at Liquid Nitrogen Temperature for CsI Neutrino Coherent Detectors

open access: yesSensors, 2022
Silicon Photomultiplier (SiPM) is a sensor that can detect low-light signals lower than the single-photon level. In order to study the properties of neutrinos at a low detection threshold and low radioactivity experimental background, a low-temperature ...
Fang Liu   +8 more
doaj   +1 more source

Geant4 Simulation Study of Dose Distribution and Energy Straggling for Proton and Carbon Ion Beams in Water

open access: yesMATEC Web of Conferences, 2016
Dose distribution and energy straggling for proton and carbon ion beams in water are investigated by using a hadrontherapy model based on the Geant4 toolkit.
Zhao Qiang, Zhang Zheng, Li Yang
doaj   +1 more source

Study on Natural Circulation Heat Transfer Characteristics of Different Liquid Metals Based on Factor Analysis

open access: yesFrontiers in Energy Research, 2020
The study of the commonness and differences of natural circulation of different liquid metals plays an important role in improving the safety of reactors.
Feng Xiang   +14 more
doaj   +1 more source

Optimization study of lead-based reactor heat exchangers based on Dakota coupling CFD

open access: yesInternational Journal of Advanced Nuclear Reactor Design and Technology
The lead-bismuth fast reactor is one of the fourth-generation reactor types.The microchannel heat exchangers are used as intermediate heat exchangers, which significantly influence the efficiency of supercritical carbon dioxide (S–CO2) Brayton cycle ...
Ge Gao   +6 more
doaj   +1 more source

New Nusselt Number Correlation and Turbulent Prandtl Number Model for Turbulent Convection with Liquid Metal Based on Quasi-DNS Results

open access: yesEnergies
Liquid metal is widely used as the primary coolant in many advanced nuclear energy systems. Prandtl number of liquid metal is much lower than that of the conventional coolant of water or gas. Based on the Reynolds analogy, the turbulent Prandtl number is
Hao Fu   +6 more
doaj   +1 more source

First-Principles Study on Various Point Defects Formed by Hydrogen and Helium Atoms in Tungsten

open access: yesScience and Technology of Nuclear Installations, 2017
The different point defects formed by two hydrogen atoms or two helium atoms in tungsten were investigated through first-principles calculation. The energetically favorable site for a hydrogen atom is tetrahedral interstitial site while substitutional ...
Qiang Zhao   +3 more
doaj   +1 more source

Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors

open access: yesScience and Technology of Nuclear Installations
We explored the nonlinear characteristics of energy resolution (ER) for the sealed NaI (Tl) scintillator detector by using a gamma-ray spectroscopy system and Monte Carlo simulation.
Hongchi Zhou   +4 more
doaj   +1 more source

Research on heat transfer coefficient of supercritical water based on factorial and correspondence analysis

open access: yesNuclear Engineering and Technology, 2020
The study of heat transfer coefficient of supercritical water plays an important role in improving the heat transfer efficiency of the reactor. Taking the supercritical natural circulation experimental bench as the research object, the effects of power ...
Feng Xiang   +4 more
doaj   +1 more source

The Method of Calculating the Frequency of the Initiating Event in a Dual-Unit Site with the Example of LOOP Events

open access: yesEnergies, 2023
In a nuclear power plant, the consequences of a multi-unit event occurring concurrently are more serious than those of a single-unit event. The first step in the probabilistic safety analysis of multi-units is to analyze the initiating events and ...
Wanxin Feng, Ming Wang, Zhixin Xu, Yu Yu
doaj   +1 more source

Modern railways for the 21st century – a challenge not only for designers

open access: yesActa Polytechnica CTU Proceedings, 2022
The paper outlines the basic goals for modern rail transport in the Czech Republic. This contribution points out some challenges and technical tasks that project engineers and operators of the rail transport in the Czech Republic will have to deal with ...
Josef Kolář
doaj   +1 more source

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