DEVELOPMENT OF ELECTRON GUN WITH NON-INTERCEPTING GRIDS.

Abstract

A technique for making non-intercepting gridded guns has been developed using a pair of aligned grids. One grid is placed on or slightly off the cathode. This grid operates at cathode potential and shields the other control grid from interception. By this technique, control-grid interception can be reduced from 20 percent--which is the geometric shielding area of the grids--to less than 0.5 percent of the cathode current. As a result, grid-pulser current requirements and grid average power handling capability are improved by more than an order of magnitude. Use of the aligned-grid pair has no more effect on electron-beam shape than the single intercepting control grid. The amplification factor of the aligned-grid pair is approximately the same as that of a single intercepting control grid. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1965
Accession Number
AD0475773

Entities

People

  • Marshall Mcdonald

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplification
  • Electron Beams
  • Electron Guns
  • Electrons
  • Interception
  • Shielding

Fields of Study

  • Physics

Readers

  • Electronics Engineering

Technology Areas

  • Directed Energy
  • Microelectronics