Results 1 to 10 of about 374,974 (183)

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

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   +2 more sources

Importance of surface morphology on secondary electron emission: a case study of Cu covered with carbon, carbon pairs, or graphitic-like layers [PDF]

open access: yesScientific Reports, 2023
Understanding the relationship between surface adsorbates and secondary electronic emission is critical for a variety of technologies, since the secondary electrons can have deleterious effects on the operation of devices.
L. Diaz   +5 more
doaj   +2 more sources

In search of nano-materials with enhanced secondary electron emission for radiation detectors [PDF]

open access: yesScientific Reports, 2021
There has been limited research devoted to secondary electron emission (SEE) from nano-materials using rapid and heavy ion bombardment. Here we report a comparison of SEE properties between novel nano-materials with a three-dimensional nano-structure ...
Marian Cholewa   +8 more
doaj   +2 more sources

Resolving the contradiction between simulation and experimental results of using gold nanoparticles in proton therapy [PDF]

open access: yesScientific Reports
While gold nanoparticles (GNP)s in proton therapy are widely assumed to exert radio-sensitization via mechanism of secondary electron emission, the discrepancies between simulations and experimental outcomes shows that, in some cases, the secondary ...
Farshid Tabbakh
doaj   +2 more sources

Secondary electron emission from insulators and negative electron affinity semiconductors

open access: yesResults in Physics, 2021
Based on expression of primary range R and the R at Epo ≥ 10.0 keV and L at Epo ≥ 1.0 keV calculated by ESTAR program [1], the method of obtaining formula for R at Epo ≥ 1.0 keV is presented; where Epo is incident energy of primary electron, and L is the
Ai-Gen Xie   +3 more
doaj   +1 more source

Simulation studies of secondary electron yield with electron transport from Cu (110) surfaces containing C2, N2, CO2, or NO2 adsorbates

open access: yesFrontiers in Materials, 2023
Secondary electron yields of (110) copper surfaces, covered with either carbon, nitrogen, or their dioxides, have been studied by employing combined first principles methods for the material properties and Monte Carlo simulations for electron transport ...
M. Maille   +4 more
doaj   +1 more source

Cold plasma studies on the influence of surface microstructured thickness in the secondary electron emission from tungsten coatings

open access: yesNuclear Materials and Energy, 2023
The Secondary Electron Emission (SEE) from the Plasma Facing Components, (PFCs) affects the plasma sheath and edge structure of magnetically confined toroidal plasmas with effects on the Scrappe Off Layer (SOL), heat transport and incident plasma heat ...
A. de Castro   +2 more
doaj   +1 more source

The Design of the Emission Layer for Electron Multipliers

open access: yesNanoscale Research Letters, 2021
The electron multipliers gain is closely related to the secondary electron emission coefficient (SEE) of the emission layer materials. The SEE is closely related to the thickness of the emission layer.
Yuman Wang   +7 more
doaj   +1 more source

Mitigation of electron cloud effects in the FCC-ee collider

open access: yesEPJ Techniques and Instrumentation, 2022
Electron clouds forming inside the beam vacuum chamber due to photoemission and secondary emission may limit the accelerator performance. Specifically, the electron clouds can blow up the vertical emittance of a positron beam, through a head-tail-type ...
Fatih Yaman   +6 more
doaj   +1 more source

Characteristics of secondary electron emission and multipactor from a nested microtrap structure surface

open access: yesAIP Advances, 2021
It is known that an appropriate surface structure can suppress the secondary electron emission as a result of the receded multipactor in a spacecraft microwave component. On the other hand, the multiplier effect caused by electron re-entrance in ordinary
Lu Liu   +4 more
doaj   +1 more source

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