Results 11 to 20 of about 11,554 (146)

Development of a Cold Cathode Electron Source Based on Gold Cathode MCP [PDF]

open access: yesZhipu Xuebao, 2023
In this study, cold cathode electron sources using deep-UV photons to excite gold cathode and microchannel plate (MCP) were employed to configure a high-quality electron impact ion source (EI) in a mass spectrometry.
YAO Wen-jing1   +6 more
doaj   +2 more sources

Extreme Ultraviolet Lighting Using Carbon Nanotube-Based Cold Cathode Electron Beam [PDF]

open access: yesNanomaterials, 2022
Laser-based plasma studies that apply photons to extreme ultraviolet (EUV) generation are actively being conducted, and studies by direct electron irradiation on Sn for EUV lighting have rarely been attempted.
Sung Tae Yoo, Kyu Chang Park
doaj   +2 more sources

Fabrication of ZnO Nanowire Cold Cathode Flat-Panel X-ray Source with a Reflective Anode [PDF]

open access: yesNanomaterials
A novel reflective anode flat-panel X-ray source using ZnO nanowire cold cathode and a metal anode has been developed. Simulation analysis indicated that the reflective anode structure reduces electric field concentration compared to a transmission anode
Chengyun Wang   +5 more
doaj   +2 more sources

Characteristics of Carbon Nanotube Cold Cathode Triode Electron Gun Driven by MOSFET Working at Subthreshold Region [PDF]

open access: yesNanomaterials
The carbon nanotube cold cathode has important applications in the X-ray source, microwave tube, neutralizer, etc. In this study, the characteristics of carbon nanotube (CNT) electron gun in series with metal-oxide-semiconductor field-effect transistor ...
Yajie Guo   +4 more
doaj   +2 more sources

A nano-graphite cold cathode for an energy-efficient cathodoluminescent light source [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2013
The development of new types of light sources is necessary in order to meet the growing demands of consumers and to ensure an efficient use of energy. The cathodoluminescence process is still under-exploited for light generation because of the lack of ...
Alexander N. Obraztsov   +2 more
doaj   +2 more sources

Numerical Simulation of the Cold-Start Process of Polymer Electrolyte Fuel Cell

open access: yesEnergies, 2023
In this study, the cold-start process of a polymer electrolyte fuel cell has been numerically investigated under various ambient temperatures and operating currents, ranging from subzero to 283 K.
Yazhou Chen   +4 more
doaj   +1 more source

Analysis of electron emission characteristics of triggered vacuum switch based on cold cathode materials

open access: yesAIP Advances, 2022
A trigger vacuum switch that works for a long time is subject to the stable emission of initial electrons. Cold cathode materials such as velvet and carbon fiber have the characteristics of large emission electron area, uniformity, and stability. In this
Jilu Xia   +4 more
doaj   +1 more source

Investigation of gas purging and cold storage impact on PEM fuel cell system performance for aeronautical applications [PDF]

open access: yesE3S Web of Conferences, 2022
Durability of proton exchange membrane fuel cell systems under cold weather conditions is essential and a critical challenge for transportation applications.
Montaner Ríos Gema   +4 more
doaj   +1 more source

ON THE INFLUENCE OF THE SHAPE OF ANODE VOLTAGE PULSE ON THE OPERATION STABILITY OF SPATIAL-HARMONIC MAGNETRON WITH COLD SECONDARY EMISSION CATHODE [PDF]

open access: yesРадиофизика и электроника, 2018
One of the main problems faced by developers of modulators for spatial-harmonic magnetrons with cold secondary emission cathode is the selection of the correct shape of an anode voltage pulse that will ensure the stable operation of the magnetron.
V. А. Markov, V. D. Naumenko
doaj   +1 more source

Cold Cathodes with Two-Dimensional van der Waals Materials

open access: yesNanomaterials, 2023
Two-dimensional van der Waals materials could be used as electron emitters alone or stacked in a heterostructure. Many significant phenomena of two-dimensional van der Waals field emitters have been observed and predicted since the landmark discovery of ...
Yicong Chen, Jun Chen, Zhibing Li
doaj   +1 more source

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