Hydrodynamic Aspects of the Split-Foil Laser Target Design.

Abstract

Hydrodynamic simulations of exploding copper foils, which are irradiated on one side by 1.06 micron laser light, indicated that peak axial electron number density is more easily controlled with split-foil target design. Results from a series of simulations with solid copper foils that range in width from 500A to 1500A show that while peak electron temperature and time of burnthrough can be varied, evolved electron number densities are approximately bounded from above by 3 X 10 to the 20th power particles/cc. By increasing foil thickness to 1 micron and introducing aa slit on the foil axis of 100 micron width, uniform plasmas with electron number densities on the order of 6 X 10 to the 20th power particles/cc can be generated. Essentially the same results are obtained from simulations with split selenium foils. Keywords: X-ray lasers, Laser-matter interactions, Hydrodynamic simulation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 17, 1986
Accession Number
ADA173541

Entities

People

  • Jay Paul Boris
  • Jill P. Dahlburg
  • John H. Gardner
  • Mark H. Emery

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Coherent Radiation
  • Electrons
  • Geometry
  • Laser Beams
  • Laser Targets
  • Military Research
  • Particles
  • Security
  • Selenium
  • Simulations
  • Soft X Rays
  • Steady State
  • Temperature Gradients
  • Thickness
  • X Ray Lasers
  • X Rays

Fields of Study

  • Physics

Readers

  • Marine Propulsion Engineering and Naval Architecture
  • Optical Physics and Photonics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Directed Energy
  • Microelectronics