WAVE PROPAGATION ON SINGLE CARRIER BEAMS OF CYLINDRICAL GEOMETRY IN A FINITE MAGNETIC FIELD.

Abstract

Wave propagation in a collisionless beam of single-charge carriers, such as an electron beam, is analyzed in terms of modes of axial symmetry. It is found that four modes are usually sufficient to fulfill the initial conditions, but under certain conditions six modes can exist. The mode amplitudes are calculated and a magnetic field dependence is found for an additional term in the space-charge mode amplitude. A field dependent term is also found in the expression for power flow due to cross-coupling of the space-charge and the vortex modes, which may explain the reduction of noise figure with increasing magnetic field observed recently in traveling-wave amplifiers. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1967
Accession Number
AD0664149

Entities

People

  • Bruno Zotter

Organizations

  • United States Army Communications-Electronics Command

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Amplitude
  • Charge Carriers
  • Charged Particles
  • Couplings
  • Electron Beams
  • Electrons
  • Geometry
  • Magnetic Fields
  • Space Charge
  • Traveling Waves
  • Wave Propagation
  • Waves

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Directed Energy
  • Microelectronics
  • Microelectronics - Graphene
  • Space
  • Space - Hall-Effect Thruster