Results 11 to 20 of about 484,111 (194)

Secondary electron yield of Cu technical surfaces: Dependence on electron irradiation [PDF]

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2013
The secondary emission yield (SEY) properties of colaminated Cu samples for LHC beam screens are correlated to the surface chemical composition determined by x-ray photoelectron spectroscopy. The surface of the as-received samples is characterized by the
R. Larciprete   +4 more
doaj   +5 more sources

Contrasting response of biomass and grain yield to severe drought in Cappelle Desprez and Plainsman V wheat cultivars [PDF]

open access: yesPeerJ, 2016
We report a case study of natural variations and correlations of some photosynthetic parameters, green biomass and grain yield in Cappelle Desprez and Plainsman V winter wheat (Triticum aestivum L.) cultivars, which are classified as being drought ...
Kenny Paul   +4 more
doaj   +6 more sources

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

Do Impulsive Solar-Energetic-Electron (SEE) Events Drive High-Voltage Charging Events on the Nightside of the Moon?

open access: yesFrontiers in Astronomy and Space Sciences, 2021
When the Earth’s moon is in the supersonic solar wind, the darkside of the Moon and the lunar plasma wake can be very dangerous charging environments. In the absence of photoelectron emission (dark) and in the absence of cool plasma (wake), the emission ...
Joseph E. Borovsky, Gian Luca Delzanno
doaj   +1 more source

Measurement of secondary electron emission yields [PDF]

open access: yesIEEE Transactions on Plasma Science, 2003
The authors describe a method for the measurement of secondary electron emission coefficients and demonstrate the use of this approach for the measurement of secondary electron yields for titanium, copper, and carbon ions incident upon an aluminum target.
Chutopa, Y., Yotsombat, B., Brown, I.G.
openaire   +2 more sources

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

open access: yesNuclear 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.   +2 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

Surface Characterization and Secondary Electron Emission Properties of Alumina Containing MgO Film on Ag-Mg-Al Alloy

open access: yesMetals, 2018
Ag-Mg alloy is used as a dynode material in electron multiplier tubes due to the high secondary electron yields (δ) of the surface of MgO film.
Fan Zhou   +7 more
doaj   +1 more source

Laser Processed Oxygen-Free High-Conductivity Copper with Ti and Ti–Zr–V–Hf Films Applied in Neutron Tube

open access: yesApplied Sciences, 2019
The laser processing method has proven to produce surfaces while ensuring a low secondary electron yield of oxygen-free high-conductivity copper (OFHC) samples, making it attractive for electron cloud mitigation in next-generation particle accelerators ...
Jie Wang   +8 more
doaj   +1 more source

Measurement of the secondary electron emission from CVD diamond films using phosphor screen detectors [PDF]

open access: yes, 2015
Diamond-based photomultipliers have the potential to provide a significant improvement over existing devices due to diamond’s high secondary electron yield and narrow energy distribution of secondary electrons which improves energy resolution creating ...
Chatterjee, Vijay   +8 more
core   +1 more source

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