Results 21 to 30 of about 189,484 (267)

Secondary electron emission under magnetic constraint: from Monte Carlo simulations to analytical solution

open access: yesScientific Reports, 2021
The secondary electron emission process is essential for the optimal operation of a wide range of applications, including fusion reactors, high-energy accelerators, or spacecraft.
Claudiu Costin
doaj   +1 more source

Research progress in carbon nitride in field emission cold cathode materials

open access: yesCailiao gongcheng, 2022
Carbon nitride has the advantages of excellent thermal stability, high thermal conductivity, larger forbidden band width and negative electron affinity. Therefore, carbon nitride is a promising field emission cathode material. On the basis of introducing
XIAO Haochun, FENG Yibing, WANG Jigang
doaj   +1 more source

On the visibility of electron–electron interaction effects in field emission spectra [PDF]

open access: yesSolid State Communications, 2005
One of the most convenient methods to obtain information about the energy distribution function of electrons in conducting materials is the measurement of the energy resolved current $j(ω)$ in field emission (FE) experiments. Its high energy tail $j_>(ω)$ (above the Fermi edge) contains invaluable information about the nature of the electron ...
Schmidt, Thomas L., Komnik, Andreas
openaire   +4 more sources

Field electron emission in the atmospheric pressure range

open access: yesJournal of Electrostatics, 2023
Field emission is a well-known technology for generating electrons under vacuum conditions. Here we assess whether gated silicon field emitter microstructures, originally developed for use in space, can ionise air for electroaerodynamic propulsion and other applications.
L. Trascinelli, K.L. Aplin
openaire   +2 more sources

Research on the application of thermal field emission gun in electron beam lithography

open access: yesDianzi Jishu Yingyong, 2022
The classification and characteristics of electron gun are introduced, with emphasis on the principle, structure and characteristics of thermal field emission gun and its application in electron beam lithography machine. The relationship between the beam
Hao Xiaoliang   +6 more
doaj   +1 more source

Indirect measurement of field emission electron current from the main superconducting cavities of compact ERL at KEK

open access: yesEPJ Web of Conferences, 2017
The field emission electron currents from the main superconducting cavities (Cavities #3 and #4) of compact ERL at KEK, Japan, were estimated indirectly from photon dose rates measured around the cavities and on the roof of the compact ERL room.
Matsumura Hiroshi   +12 more
doaj   +1 more source

FIELD ELECTRON EMISSION FROM NANOSTRUTURED SURFACE OF CARBONIZED IRIDIUM

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The characteristics of the field electron emission of the iridium tip with different carbon formations on its surface are investigated. It was found that in some cases, compared to metal emitters the carbon-coated emitter exhibits significantly greater ...
D.P. Bernatskii, V.G. Pavlov
doaj   +1 more source

Field-emission cathode gating for rf electron guns

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2005
We present a novel method of combining the most desirable characteristics of thermionic-cathode and photocathode rf guns, using a field-emission cathode and multiple rf frequencies. Simulations indicate that extremely low-emittance beams (on the order of
J. W. Lewellen, J. Noonan
doaj   +1 more source

Model of Field Electron Emission from the Edge of Flat Graphene into Vacuum

open access: yesПриборы и методы измерений, 2019
Graphene-based nanostructures are the promising materials for applications as electron emitters.The aim of the work is to study the field electron emission from the edge of a single graphene plane.In the semi-classical approximation, a model of field ...
N. A. Poklonski   +4 more
doaj   +1 more source

Investigations of electron emission from DLC thin films deposited by means of RF PCVD at various self-bias voltages

open access: yesJournal of Telecommunications and Information Technology, 2023
The aim of this paper is to report the results of field emission experiments on undoped, flat diamond-like carbon (DLC) thin films deposited at various self-bias voltages using radio frequency plasma chemical vapor deposition (RF PCVD) technique. It has
Dagmara Jarzyńska   +3 more
doaj   +1 more source

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