TOTAL ABSORPTANCE OF AMMONIA IN THE INFRARED.

Abstract

Apparatus and experimental techniques used in the measurement of the total absorptance of the ammonia bands near 950, 1628 and 3300/cm are described. The total absorptances of these bands at 25C were measured for pure samples of ammonia and for ammonia mixed with nitrogen. The results are displayed graphically with total absorptance shown as a function of absorber concentration and equivalent pressure, which depends upon the partial pressures of the two gases. The experimental values of partial pressure, total pressure and total absorptance are tabulated and tracings of many of the spectra are shown. Values for intensity are given for each region studied. The equivalent pressure is expressed as a function of the self-broadening coefficient, which is related by simple kinetic theory to the ratio of the optical collision diameters. These derived ratios are listed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1964
Accession Number
AD0607401

Entities

People

  • Dudley Williams
  • Wilbur L. France

Organizations

  • North Carolina State University

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Collisions
  • Contracts
  • Cooperation
  • Diameters
  • Intensity
  • Kinetic Theory
  • Measurement
  • Nitrogen
  • Nitrogen Compounds
  • Partial Pressure
  • Pressure Measurement
  • Spectra

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Molecular Photonics/Laser Physics
  • Pulsed Power and Plasma Physics.