Accession Number:

AD0600768

Title:

MEASUREMENT OF THE TEMPERATURE OF THE THERMALLY IRRADIATED SURFACE OF ALPHA CELLULOSE

Descriptive Note:

Corporate Author:

NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CA

Personal Author(s):

Report Date:

1964-03-24

Pagination or Media Count:

29.0

Abstract:

The transient temperature histories of exposed surfaces of specimens of alpha cellulose, irradiated by a carbon arc image furnace, are radiatively measured with a liquid nitrogen cooled, lead sulfide detector, behind a 3.4 micron, narrow band-pass interference filter. The output of the detector is displayed on an oscilloscope and is photographed by a Polaroid Land Camera. The overall time response of this system is 30 milliseconds. Reflected arc radiation off the surface of the sample at 3.4 microns is eliminated by inserting a Plexiglas filter between the arc and the specimen. A mirror is used to focus the detector onto an area of 0.21 square cm on the surface of the specimen. The detector is calibrated by substituting a standard black-body at the position normally occupied by the specimen during the measurement period.

Subject Categories:

  • Biochemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE