A Large-Area Cold-Cathode Grid-Controlled Electron Gun for Antares

Abstract

The C02 laser amplifiers used in the Antares inertial confinement fusion project require large-area radial beams of high-energy electrons to ionize the laser medium before the main discharge pulse is applied. We have designed a grid-controlled, cold-cathode electron gun with a cylindrical anode having a window area of 9.3m2 A full diameter, 1/4 length prototype of the Antares gun has been built and tested. The design details of the Antares electron gun will be presented as well as test results from the prototype. Techniques used for the prevention and control of emission and breakdown from the grid will also be discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1979
Accession Number
ADA636544

Entities

People

  • H. Jansen
  • K. R. Andrews
  • W. R. Scarlett

Organizations

  • Los Alamos National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Current Density
  • Diffusion Pumps
  • Electron Beams
  • Electron Guns
  • Electrons
  • Emission
  • Energy
  • Gases
  • Geometry
  • High Voltage
  • Impedance
  • Internal Pressure
  • Measurement
  • Prototypes
  • Secondary Emission
  • Voltage

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Microelectronics