Monte Carlo model of electron energy degradation in a CO2 atmosphere [PDF]
A Monte Carlo model has been developed to study the degradation of
Ajello +81 more
core +4 more sources
Engineered surfaces to control secondary electron emission for multipactor suppression [PDF]
A significant problem for space-based systems is multipactor - an avalanche of electrons caused by repeated secondary electron emission (SEE). The consequences of multipactor range from altering the operation of radio frequency (RF) devices to permanent ...
Coutu, Ronald A., Jr. +3 more
core +1 more source
Artifacts in Secondary Electron Emission Yield Measurements [PDF]
Measurement of secondary electron yields and electron energy distributions appears straightforward--simple equipment, simple electronics, easy-to-acquire data, at least in a laboratory setting. Unfortunately, the low secondary electron energy (2-5 eV) and the extreme sensitivity of the yield to surface condition and surrounding environment make the ...
openaire +1 more source
Effects of secondary yield parameter variation on predicted equilibrium potential of an object in a charging environment [PDF]
The sensitivity of predicted equilibrium potential to changes in secondary electron yield parameters was investigated using MATCHG, a simple charging code which incorporates the NASCAP material property formulations.
Purvis, C. K.
core +1 more source
Carbon coating of the SPS dipole chambers
The Electron Multipacting (EM) phenomenon is a limiting factor for the achievement of high luminosity in accelerators for positively charged particles and for the performance of RF devices.
Calatroni, S. +7 more
core +1 more source
Monte Carlo modeling of low-energy electron-induced secondary electron emission yields in micro-architected boron nitride surfaces [PDF]
Surface erosion and secondary electron emission (SEE) have been identified as the most critical life-limiting factors in channel walls of Hall-effect thrusters for space propulsion.
Alvarado, Andrew +3 more
core +2 more sources
Beam impingement angle effects on secondary electron emission characteristics of textured pyrolytic graphite [PDF]
Experimentally determined values of true secondary electron emission and relative values of reflected primary electron yield for untreated and ion-textured pyrolytic graphite over a range of primary electron energy levels and electron beam impingement ...
Curren, A. N., Jensen, K. A.
core +1 more source
Aluminum Secondary Electron Yield
Accurate modeling of spacecraft charging is essential to mitigate well-known and all-too-common deleterious and costly effects on spacecraft resulting from charging induced by interactions with the space plasma environment. This paper addresses how limited availability of electron emission and transport properties of spacecraft materials—in particular ...
Dennison, JR, Lundgreen, Phillip
openaire +2 more sources
MONTE CARLO SIMULATION OF INTERACTION BETWEEN AN ELECTRON BEAM AND A NANO-SILICON FILM
Due to the fundamental role played by the interaction electron-matter in scanning electron microscopy (Electron Beam Induced Current -EBIC- in Silicon case), a Monte Carlo calculation model of this interaction applied in silicon nanostructure (nano ...
Z. Elateche, M.S. Aida
doaj +1 more source
Secondary Electron Yield Measurements of Fermilab's Main Injector Vacuum Vessel
We discuss the progress made on a new installation in Fermilab's Main Injector that will help investigate the electron cloud phenomenon by making direct measurements of the secondary electron yield (SEY) of samples irradiated in the accelerator.
/Fermilab +14 more
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