Results 21 to 30 of about 374,993 (202)

Electron-lattice and electron–electron interactions and Debye temperature studied by temperature dependence of secondary electron emission from insulators

Results in Physics, 2020
The formulas for temperature dependence of λ(χreal, Eg, T), λ(χreal, Eg, T)p, ẟ and σ of insulators with less impurities were deduced and proved to be true; λ(χreal, Eg, T) is the mean escape depth of secondary electrons emitted from insulators with ...
Ai-Gen Xie, Zheng Pan, Ya-Yi Chen
doaj   +1 more source

Effect of electronic irradiation on properties, composition of lead-silicate glasses and coefficient of secondary electron emission on their surface [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
The paper discusses the effectiveness of methods for degassing surfaces of lead-silicate glasses by electron irradiation (treatment) in order to increase the efficiency of secondary electron emission.
V.I. Savenko
doaj   +1 more source

Study of multipactor effect with applications to superconductive radiofrequency cavities [PDF]

Nuclear Technology and Radiation Protection, 2017
In this paper a one-dimensional Particle-in-Cell/Monte Carlo collision code has been used in order to study characteristics of multipactors. For multipactor to occur each electron striking the surface must generate more than one secondary on ...
Radmilović-Rađenović Marija D., Beličev Petar D., Rađenović Branislav M.   +2 more
doaj   +1 more source

Role of surface microgeometries on electron escape probability and secondary electron yield of metal surfaces [PDF]

, 2020
The influence of microgeometries on the Secondary Electron Yield (SEY) of surfaces is investigated. Laser written structures of different aspect ratio (height to width) on a copper surface tuned the SEY of the surface and reduced its value to less than ...
Abdolvand, A., Bajek, D., Baudin, L., Bogdanowicz, K., Calatroni, S., Chiggiato, P., Di Girolamo, B., Garcia-Tabares Valdivieso, E., Himmerlich, M., Sitko, M., Taborelli, M., Wackerow, S., Zanin, D. A.   +12 more
core   +2 more sources

Ultralow Secondary Electron Emission of Graphene

ACS Nano, 2011
In order to ensure that vacuum electronic devices work with high overall efficiency, it is required to use materials with low secondary electron emission to fabricate or coat collectors, grids, and envelope walls of the devices. We report that the secondary electron yields of monolayer graphenes are ultralow, comparable with the lowest yields of the ...
Luo, Jun, Tian, Peng, Pan, Cheng Ta, Robertson, Alexander W., Warner, Jamie H., Hill, Ernie W., Briggs, G. Andrew D   +6 more
openaire   +3 more sources

Direct imaging of electron density with a scanning transmission electron microscope

Nature Communications, 2023
Recent studies of secondary electron (SE) emission in scanning transmission electron microscopes suggest that material’s properties such as electrical conductivity, connectivity, and work function can be probed with atomic scale resolution using a ...
Ondrej Dyck, Jawaher Almutlaq, David Lingerfelt, Jacob L. Swett, Mark P. Oxley, Bevin Huang, Andrew R. Lupini, Dirk Englund, Stephen Jesse   +8 more
doaj   +1 more source

Nanocarbon Composites for Non-Incandescent Microwave Magnetrons and Subterahertz Ranges [PDF]

Известия Саратовского университета. Новая серия: Физика, 2020
Background and Objectives: Development of techniques and investigation of secondary emission properties of film diamond graphite nanocomposites obtained in different modes of microwave plasma-chemical deposition were performed for sources of ...
Yafarov, Ravil' Kiashshafovich, Шабунин , Никита Олегович, Shanygin, Vitaliy Iakovlevich, Zakharevich, Andrey Mikhailovich   +3 more
doaj   +1 more source

GEANT4 Study of Secondary Electron Emission in ZnO Nanorod Arrays under 10-100 MeV Oxygen Ion Irradiation

Фізика і хімія твердого тіла
Computational study of secondary electron emission (SEE) from ZnO nanorod arrays deposited on Au/Si₃N₄ substrates under irradiation with 16O ions in the 10–100 MeV energy range was performed. Using a combination of SRIM and GEANT4 Monte Carlo simulations,
V. Kotsyubynsky, M. Cholewa, V. Kindrat, V. Boychuk, N. Mentynskyi, R. Abaszade, Y. Sukhorebskyi   +6 more
doaj   +1 more source

Influence of the secondary electron emission on the characteristics of radio frequency plasmas [PDF]

Hemijska Industrija, 2011
In this paper the influence of secondary emission on the characteristics of RF plasmas has been studied. An asymmetrical dual-frequency capacitively coupled plasma reactor has been modeled with one dimensional PIC/MCC (Particle in Cell with ...
Bojarov Aleksandar, Radmilović-Rađenović Marija, Savić Marija   +2 more
doaj   +1 more source

Effect of ion nonthermality on nonlinear dust acoustic wave propagation in a complex plasma in presence of secondary electron emission

AIP Advances, 2017
In this paper we have investigated the effect of ion nonthermality on nonlinear dust acoustic wave propagation in a complex plasma in presence of secondary electron emission considering equilibrium dust charge positive. In space and astrophysical plasmas
Subrata Bhakta, Susmita Sarkar
doaj   +1 more source