Analytic Models of Magnetic Field Evolution in Laser-Produced Plasma Expansions.

Abstract

Analytic models of the magnetic field evolution in laser-produced plasma expansions have been studied and applied to the NRL laser HANE (high altitude nuclear explosion) simulation experiment. Both one- and two-dimensional models have been investigated for laser plasma expansions with and without initial background magnetic fields. For the case with no initial background magnetic field, thermal source mechanisms have been used to discuss the two-dimensional evolution and morphology of spontaneous self-generated magnetic fields. With an initial background magnetic field, one-dimensional models with discontinuous debris density profiles give unrealistically large magnetic field compressions, while predictions from two-dimensional models with smooth profiles are in reasonable agreement with initial NRL experimental observations. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 1983
Accession Number
ADA132181

Entities

People

  • Michael J. Keskinen

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Counter WMD
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Communication Systems
  • Department Of Defense
  • Electrons
  • Engineering
  • Explosions
  • High Altitude
  • Magnetic Fields
  • Nuclear Explosions
  • Personal Information Managers
  • Physics Laboratories
  • Security
  • Simulations
  • Systems Engineering
  • Temperature Gradients
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy