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Title: Scattering of electromagnetic waves by vortex density structures associated with interchange instability: Analytical and large scale plasma simulation results

The presence of plasma turbulence can strongly influence propagation properties of electromagnetic signals used for surveillance and communication. In particular, we are interested in the generation of low frequency plasma density irregularities in the form of coherent vortex structures. Interchange or flute type density irregularities in magnetized plasma are associated with Rayleigh-Taylor type instability. These types of density irregularities play an important role in refraction and scattering of high frequency electromagnetic signals propagating in the earth ionosphere, in high energy density physics, and in many other applications. We will discuss scattering of high frequency electromagnetic waves on low frequency density irregularities due to the presence of vortex density structures associated with interchange instability. We will also present particle-in-cell simulation results of electromagnetic scattering on vortex type density structures using the large scale plasma code LSP and compare them with analytical results.
Authors:
; ;  [1] ;  [2] ;  [3]
  1. Air Force Research Laboratory (AFRL/RY), Wright Patterson AFB, Ohio 45433 (United States)
  2. University of Nevada at Reno, Nevada 89557 (United States)
  3. Naval Research Laboratory, Washington, District of Columbia 20375 (United States)
Publication Date:
OSTI Identifier:
22300174
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPARATIVE EVALUATIONS; ELECTROMAGNETIC RADIATION; ENERGY DENSITY; FLUTE INSTABILITY; MEDICAL SURVEILLANCE; MONITORING; PLASMA DENSITY; PLASMA SIMULATION; REFRACTION; SCATTERING; SIGNALS; TURBULENCE