Optical Imaging of a Coupling Region between Inter-Streaming Plasmas.

Abstract

Recent studies in the NRL HANE simulation experiment have been directed toward a higher pressure/low altitude regime where HANE events (e.g., Checkmate) and early HANE simulations (P > or approx. = .5 Torr) had shown a turbulence or jetting. The main diagnostic was dual-time, dark-field shadowgraphy which had sufficient temporal ()300 psec) and spatial (10 micron) resolution to resolve details of the developing structure. A well-defined, initially nearly-spherical front or coupling region is seen which slows down, indicating mass pick-up. At higher ambient pressure, lower laser energy and later time, the front shows a breakup. When conditions are just marginal for break-up, the front tends to form a single protuberance or aneurism which grows in time. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 24, 1984
Accession Number
ADA139191

Entities

People

  • Barrett H. Ripin
  • Edgar A. McLean
  • 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
  • Altitude
  • Blast Waves
  • Classification
  • Couplings
  • Department Of Defense
  • Electrons
  • Engineering
  • Laser Beams
  • Laser Pulses
  • Lasers
  • Magnetic Fields
  • Military Research
  • Photography
  • Security
  • Simulations
  • Systems Engineering

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy