Improved ICEPIC Secondary Electron Emission Modeling

Abstract

This report details the technical results of a year-long effort to improve the secondary electron emission (SEE) model within the AFRL particle-in-cell code ICEPIC, for incident electrons in the range of 10 keV to 500 keV. The simulation code GEANT4 was used to generate SEE statistics across a range of incidence energies and angles using seven typical materials found within high power microwave devices: copper, stainless steel, aluminum, niobium, graphite, aluminum oxide (alumina), and beryllium oxide. A parametric model was defined and demonstrated to fit the available data. Due to the relatively large uncertainty in the available SEE data at high incidence energies, the authors recommend that future work in this area focus on obtaining more data for high-incident energy electrons, which can then be used to tune and/or refine the model as appropriate.

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Document Details

Document Type
Technical Report
Publication Date
Dec 07, 2020
Accession Number
AD1124664

Entities

People

  • Allycia Gariepy
  • Forrest H Phillips
  • Scott A. Rice

Organizations

  • Applied Research Associates (United States)

Tags

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Aluminum Oxides
  • Charge Carriers
  • Charged Particles
  • Chemical Synthesis
  • Chemistry
  • Dielectrics
  • Directed Energy Weapons
  • Electron Emission
  • Electron Energy
  • Electrons
  • High Power Microwaves
  • Ionization
  • Large Hadron Collider
  • Particle Accelerators
  • Particle Physics
  • Probabilistic Models
  • Quantum Electrodynamics
  • Scattering
  • Secondary Emission
  • Spectra
  • Weak Bosons

Fields of Study

  • Physics

Readers

  • Metallurgy
  • Pulsed Power and Plasma Physics.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy
  • Microelectronics