Monte Carlo raytracing method for calculating secondary electron emission from micro-architected surfaces

  title={Monte Carlo raytracing method for calculating secondary electron emission from micro-architected surfaces},
  author={Andrew Alvarado and Hsing-Yin Chang and Warren Nadvornick and Nasr Ghoniem and Jaime Marian},
  journal={Applied Surface Science},
Abstract Secondary electron emission (SEE) from inner linings of plasma chambers in electric thrusters for space propulsion can have a disruptive effect on device performance and efficiency. SEE is typically calculated using elastic and inelastic electron scattering theory by way of Monte Carlo simulations of independent electron trajectories. However, in practice the method can only be applied for ideally smooth surfaces and thin films, not representative of real material surfaces. Recently… Expand

Figures from this paper

Monte Carlo modeling of low-energy electron-induced secondary electron emission yields in micro-architected boron nitride surfaces
Abstract 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. RecentExpand
A method to numerically determine the secondary electron yield considering effects of the surface morphology
  • Ning Yang, Baipeng Song, +5 authors Guan-Jun Zhang
  • Materials Science
  • Journal of Applied Physics
  • 2021
Secondary electron emission (SEE) of solid materials due to electron bombardment is influenced by numerous properties of materials, where the surface condition plays a critical role in the value ofExpand
Secondary electron emission from reticulated cellular copper surfaces
An experimental and computational study of the secondary electron yield (SEY) of copper foam is presented. Ray-tracing Monte Carlo (MC) simulations, based on primary electron transport andExpand
A linked-scale coupled model of mass erosion and redistribution in plasma-exposed micro-foam surfaces
Abstract Surface evolution due to exposure to harsh environments is of importance in many scientific and technological applications. In plasma-exposed materials, the surface receives chargedExpand
The PFRC-II in seed plasma mode is a tandem magnetic mirror. In one end cell is a low-power double-saddle antenna which produces cold (5 eV), tenuous (10/cm) plasma. Using x-ray pulse-heightExpand
Surface roughness evolution induced low secondary electron yield in carbon coated Ag/Al substrates for space microwave devices
Abstract High power microwave devices have been suffering from secondary electron yield (SEY), which occurs at the surface and leads to increases in energy dissipate and noise level in microwaveExpand
Effect of atmospheric exposure on secondary electron yield of inert metal and its potential impact on the threshold of multipactor effect
Abstract The secondary electron emission (SEE) property of materials is closely related to the multipactor, which is one of the potential risk factors affecting the reliability of high powerExpand


Secondary electron emission from textured surfaces
In this work, a Monte Carlo model is used to investigate electron induced secondary electron emission for varying effects of complex surfaces by using simple geometric constructs. Geometries used inExpand
Calculation of secondary electron emission yields from low-energy electron deposition in tungsten surfaces
Abstract We present calculations of secondary electron emission (SEE) yields in tungsten as a function of primary electron energies between 100 eV and 1 keV and incidence angles between 0 and 90 ° .Expand
Modeling of reduced secondary electron emission yield from a foam or fuzz surface
Complex structures on a material surface can significantly reduce the total secondary electron emission yield from that surface. A foam or fuzz is a solid surface above which is placed a layer ofExpand
Kinetic effects in a Hall thruster discharge
Recent analytical studies and particle-in-cell simulations suggested that the electron velocity distribution function in E×B discharge of annular geometry Hall thrusters is non-Maxwellian andExpand
Suppression of secondary electron yield by micro-porous array structure
We study secondary electron yield (SEY) suppression for metal materials using a roughened surface with a micro-porous array. First, we perform a Monte Carlo simulation of the electron trajectory in aExpand
A Monte Carlo simulation of primary and secondary electron trajectories in a specimen
A new Monte Carlo calculation model is presented to simulate not only the primary electron behavior but also the secondary electron cascade in a specimen bombarded with an electron beam. ElectronsExpand
Secondary electron emission from plasma-generated nanostructured tungsten fuzz
Recently, several researchers [e.g., Yang et al., Sci. Rep. 5, 10959 (2015)] have shown that tungsten fuzz can grow on a hot tungsten surface under bombardment by energetic helium ions in differentExpand
Secondary electron emission of surfaces exposed to oscillating electromagnetic field is at the origin of the multipacting effect that could severely perturb the operation of particle accelerators.Expand
Secondary electron emission studies
Abstract Secondary-electron-emission processes under electron bombardment play an important role in the performance of a variety of electron devices. While in some devices, the anode and the gridExpand
Secondary electron emission from dielectric materials of a Hall thruster with segmented electrodes
The discharge parameters in Hall thrusters depend strongly on the yield of secondary electron emission from channel walls. Comparative measurements of the yield of secondary electron emission at lowExpand