MICROWAVE EMISSION AT ELECTRON CYCLOTRON HARMONICS,

Abstract

Microwave emission at electron cyclotron harmonics has been studied in a mercury-vapor discharge in a static magnetic field at a fixed frequency of 8.500 Mc. Dispersion, half-widths, and intensities of radiation peaks have been measured. The half-widths are found to be almost independent of a harmonic number in the lower density region and increase with electron densities. The radiation intensity first grows rapidly with electron density and then decreases with further density increase. This defines a maximum intensity which is approximately independent of electron density and harmonic number. When a resonance peak shifts from the cyclotron harmonics with increasing density, a distinct dip in the radiation intensity is observed. This is found to occur at exact cyclotron harmonics independent of the electron density. Some theoretical considerations are given to account for the observed results. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1965
Accession Number
AD0697370

Entities

People

  • Hideo Ikegami

Organizations

  • Stanford University

Tags

DTIC Thesaurus Topics

  • Cyclotrons
  • Electromagnetic Radiation
  • Electron Density
  • Electrons
  • Emission
  • Frequency
  • Harmonics
  • Intensity
  • Magnetic Fields
  • Microwaves
  • Radiation

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Mathematics or Statistics
  • Plasma Physics.

Technology Areas

  • Microelectronics