STRENGTHS, WIDTHS, AND SHAPES OF THE LINES OF THE 3NU CO BAND

Abstract

Spectral curves of several CO samples were used to investigate the 3nu band whose center is near 6350/cm. The strength of the band for the common C12O16 isotope was found to be 0.0130 plus or minus 0.0005 atm/cm (STP)/cm. An empirical equation, Fm = 1 + 0.011 m was derived to account for the influence of vibration-rotation on line strengths. The half-widths of the self-broadened lines at 1 atm pressure vary from approximately 0.090/cm at an absolute value of m = 1 to 0.062/cm at an absolute value of m = 20. The widths of self-broadened lines are 1.08 plus or minus 0.005 times as great as N2-broadened lines at the same pressure. The Lorentz line shape appears to be appropriate for the collision-broadened lines within a few/cm of their centers; but the extreme wings of the lines are sub-Lorentzian.

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Document Details

Document Type
Technical Report
Publication Date
Mar 10, 1967
Accession Number
AD0657114

Entities

People

  • Darrell E. Burch
  • David A. Gryvnak

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Abstracts
  • Accuracy
  • Agreements
  • Atmospheres
  • Collisions
  • Dielectric Gases
  • Dipole Moments
  • Gases
  • High Pressure
  • Measurement
  • Rotation
  • Spectra
  • Spectrometers
  • Thickness
  • Uncertainty
  • Vibration

Fields of Study

  • Physics

Readers

  • Spectroscopy.