Design Study of a Large Area Cylindrical Electron Gun

Abstract

The study was concerned with the design of a large cylindrical electron gun (5 meters long by 1 to 2 meters in diameter) and the application of state of the art high power electron tube technology to this design. A design which applies welded thoriated tungsten mesh cathodes and refractory metal grids (as used in power tubes) was investigated. Vibration characteristics of prototype mesh filaments were calculated and measurements of filament resonant frequencies confirmed the predictability of the behavior of mesh filaments. Experiments were performed on titanium foil windows which were diffusion bonded or brazed to cylindrical sealing members. These were vacuum tight after high temperature bakeout and confirmed the feasibility of fabricating modular, bonded electron window structures.

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Document Details

Document Type
Technical Report
Publication Date
Dec 31, 1972
Accession Number
AD0760047

Entities

People

  • William H. Sain

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Current Density
  • Electric Discharges
  • Electron Beams
  • Electron Emission
  • Electron Guns
  • Electron Tubes
  • Electrons
  • Emission
  • Emitters
  • Frequency
  • Materials
  • Poisoning
  • Refractory Metals
  • Resonant Frequency
  • Tensile Stress

Fields of Study

  • Physics

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Microelectronics