Accession Number:

AD0852931

Title:

An Evaluation of Small Closed-Cycle Cryogenic Refrigerators as Cooling Devices for Infrared Detectors

Descriptive Note:

Phase rept.

Corporate Author:

NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AERO-ELECTRONIC TECHNOLOGY DEPT

Personal Author(s):

• Mebus, E. A.
• Fitti, Jr, N. S.

Report Date:

1969-02-10

Pagination or Media Count:

29.0

Abstract:

Miniature closed-cycle cryogenic refrigerators are required to maintain photoconductive and photovoltaic infrared detectors used in airborne passive infrared surveillance devices at their proper operating temperatures in the range of 21 degrees to 90 degrees K. Characteristics, methods of evaluation, results of tests, and photographs of nine such cryostats are presented.

Descriptors:

• *INFRARED DETECTORS
• *REFRIGERATION SYSTEMS
• AERIAL RECONNAISSANCE
• COOLING
• CRYOGENICS
• CRYOSTATS
• PHOTOCONDUCTIVITY
• SEMICONDUCTORS
• SPECIFICATIONS

Subject Categories:

• Air Conditioning, Heating, Lighting and Ventilating
• Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE