The Use of Absorbing Smokes for the Attenuation of Infra-Red Radiation

Abstract

A number of particulate clouds composed of carbon particles have been investigated in the laboratory to compare their efficiencies as absorbers of infra-red radiation. It was found that the most efficient were those produced from pulverized charcoals, one cloud giving almost uniform attenuation over the wavelength range 1 - 13 micrometers. A dispersion of this material was compared in the field with smokes produced from white phosphorus and from hexachloroethane smoke mixture (PN 800). Under the conditions of the trials it was found that for the same aerosol concentrations, the charcoal was about five times more efficient than the chemical smokes against radiation having a wavelength of about 5 micrometers.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1972
Accession Number
AD0596024

Entities

People

  • W. L. Dennis

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Army
  • Attenuation
  • Boiling Point
  • Detection
  • Detectors
  • Dispersions
  • Filters
  • Governments
  • Materials
  • Measurement
  • Navy
  • Particle Size
  • Particles
  • Physical Properties
  • Radiation
  • Recording Systems
  • Scattering

Fields of Study

  • Physics

Readers

  • Materials Science
  • Rocket Propulsion.
  • Spectroscopy.