STUDY OF CROSSED-FIELD AMPLIFIERS

Abstract

The design of a crossed-field gun, in which the cathode and accelerating regions are shielded from the magnetic field, is completed. The geometry of the magnetic shield and focusing electrodes of the shielded gun which has a Brillouin flow characteristic at the gun exit is specified. The computer programs developed for a second order paraxial-ray crossed-field beam synthesis is now operational. Crossed-field effects on the potential minimum stability are being investigated using a space-charge feedback model for computer calculations. Numerical results indicate that instability takes place when the cathode length equals or exceeds 0.6 of a cycloid length. A dispersion relation for a crossed-field interaction between drifted carriers and a macroscopic EM field in a solid has been derived. Investigation of the dispersion relation so far has not uncovered an instability within the physical parameters used.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1966
Accession Number
AD0801459

Entities

People

  • Marcel Meyer
  • R. A. Rao
  • R. Y. C. Ho
  • S. P. Yu
  • T. Van Duzer

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Amplifiers
  • Commerce
  • Computer Programs
  • Computers
  • Contractors
  • Contracts
  • Differential Equations
  • Dispersion Relations
  • Electric Fields
  • Electrodes
  • Electron Beams
  • Electronics
  • Equations
  • Geometry
  • Magnetic Fields
  • Shot Noise
  • Space Charge

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Electronics Engineering
  • Fluid Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster