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Title: Electron beam generated whistler emissions in a laboratory plasma

Naturally occurring whistler mode emissions in the magnetosphere, are important since they are responsible for the acceleration of outer radiation belt electrons to relativistic energies and also for the scattering loss of these electrons into the atmosphere. Recently, we reported on the first laboratory experiment where whistler waves exhibiting fast frequency chirping have been artificially produced [1]. A beam of energetic electrons is launched into a cold plasma and excites both chirping whistler waves and broadband waves. Here we extend our previous analysis by comparing the properties of the broadband waves with linear theory.
Authors:
; ;  [1] ; ; ;  [2]
  1. Department of Physics, University of California, Los Angeles (United States)
  2. Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles (United States)
Publication Date:
OSTI Identifier:
22496223
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1689; Journal Issue: 1; Conference: 21. topical conference on radio frequency power in plasmas, Lake Arrowhead, CA (United States), 27-29 Apr 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COLD PLASMA; COMPARATIVE EVALUATIONS; ELECTRON BEAMS; EMISSION; RADIATION BELTS; RELATIVISTIC RANGE; TAIL ELECTRONS; WHISTLER INSTABILITY; WHISTLERS