Accession Number:

AD0668432

Title:

ANGULAR DISTRIBUTION OF RADIATION REFLECTED FROM CARBON DIOXIDE CRYODEPOSITS FORMED ON 77 Deg. K SURFACES

Descriptive Note:

Final rept. Jun 1967-Jan 1968

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1968-04-01

Pagination or Media Count:

63.0

Abstract:

The angular distribution of light reflected from carbon dioxide cryodeposits formed at various rates on polished copper and black substrates has been measured for various cryodeposit thicknesses and angles of incidence. Cryodeposits were found to reflect light essentially diffusely at thicknesses greater than about 100 microns. The specular reflection from both polished copper and black substrates could be reduced by as much as two orders of magnitude by a 100-micron-thick cryodeposit. Bragg interference, backscattering, scattering interference, and shifts of the angular location of the specular component were all observed and illustrated that light reflection from cryodeposits is a very complex phenomenon.

Subject Categories:

  • Optics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE