Generation of Enhanced-Scalelength Plasmas and Zeeman Study of Magnetic Fields.

Abstract

Using nonuniform laser illumination on flat targets, with moderate laser energies (200J), we have produced enhanced density scalelengths; e.g., in excess of 0.5 mm at 0.1 of critical density. These enhanced scalelengths are of interest in simulating large, high-gain pellets, and investigating the potential impact of longer scalelengths on a variety of convective plasma instabilities. The non-uniform laser irradiation also affects the spontaneous magnetic fields. These fields were measured for the first time using the Zeeman effect. Space-and-time-resolved measurements, for both polarizations, were made of the 2271-2278 A CV triplet emission. A comparison with theory gave fields around 200 kG. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1983
Accession Number
ADA127951

Entities

People

  • C. K. Manka
  • Edgar A. McLean
  • H. R. Griem
  • John A. Stamper
  • Stephen P.P. Obenschain

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Corporations
  • Department Of Defense
  • Electrical Engineering
  • Engineering
  • High Gain
  • Laser Beams
  • Magnetic Fields
  • Military Research
  • Physics
  • Physics Laboratories
  • Polarization
  • Security
  • Space Systems
  • Systems Engineering
  • Technical Information Centers
  • Zeeman Effect

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Pulsed Power and Plasma Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Space
  • Space - Hall-Effect Thruster