OPERATIONAL EVALUATION OF INDIUM ANTIMONIDE DETECTOR CELLS FOR THE AN/AAS-5(XE-1) INFRARED DETECTING SET
Abstract
The objective of this test was to determine the aerial surveillance capabilities, during the hours of daylight and darkness, of the indium antimonide detector cell when employed in the AN/AAS-5 (XE-1) infrared detecting set. The indium antimonide detector cell is a diffused photovoltaic infrared detector which responds to infrared wavelengths from 1 to 5.5 microns with a peak at 5.0 microns when cooled to liquid nitrogen temperatures (-196 C). Test results indicated: (1) Usable data, during the hours of darkness, could not be obtained due to microphonics in the preamplifiers and insufficient gaseous nitrogen cooling. (2) By changing preamplifiers and using direct liquid nitrogen cooling the results obtained were vastly improved. (3) Resolution in the AN/AAS-5 (XE-1) was approximately 10 mils. (4) Maintenance consisted only of replacing an allen-head screw. (5) When properly cooled, the cell's detection capabilities were good. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1959
- Accession Number
- AD0341163