Accession Number:

ADA003755

Title:

Monochromatic Transmittance/Radiance Computations

Descriptive Note:

Interim rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s):

Report Date:

1974-12-31

Pagination or Media Count:

86.0

Abstract:

A computer program and associated procedures have been developed to compute high resolution spectra for inhomogeneous optical paths including both atmospheric conditions and conditions typical of a missile plume. These programs and procedures are outlined in this report. The procedures have been used with the Air Force Cambridge Research Laboratories line atlas to demonstrate that ignoring the correlation of atmospheric absorption lines with source emission lines can lead to errors as high as 79 percent for some spectral bands and optical paths. Calculated spectra have been compared with experimental laboratory spectra typical of both atmospheric and missile plume conditions. The AFCRL line atlas requires the addition of lines from highly excited states and the correction of certain inadvertent errors to be applicable to the calculation of high temperature optical properties of gases.

Subject Categories:

  • Atmospheric Physics
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE