Development of a Dynamic Secondary Emission Model for Use in MDC (Multistage Depressed Collectors) Simulations.

Abstract

There is a strong need in the tube industry to develop good simulational design tools. An area where this is most evident is multistage depressed collector simulation. This thesis is an attempt to improve this simulation through the development and inclusion of a physically accurate secondary emission model. The model developed in this report includes provisions for various energy primary electrons, as well as various angles of primary impact. The model developed in this manner was then tested by making calculations on an existing traveling-wave tube. Keywords include: Traveling wave tubes, Multiple depressed collectors, Computer modeling, Secondary emission.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1987
Accession Number
ADA182489

Entities

People

  • David J. Ferretti

Organizations

  • University of Utah

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Angle Of Incidence
  • Backscattering
  • Crystal Structure
  • Distribution Functions
  • Electron Beams
  • Electron Energy
  • Emission
  • Materials
  • Plastic Explosives
  • Polycrystals
  • Secondary Emission
  • Simulations
  • Space Charge
  • Temperature Gradients
  • Traveling Waves

Readers

  • Combustion and Flow Dynamics.
  • Computer Science.
  • Psychological Intervention/Treatment for Stress, Anxiety, PTSD, and Related Emotional and Cognitive Health Symptoms.

Technology Areas

  • Microelectronics