Accession Number:

ADA067738

Title:

Evaluation of Photoconductors. Part I. Gallium-Doped Germanium.

Descriptive Note:

Final rept. Dec 76-Sep 78,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

• Moore,W. J.

Report Date:

1979-04-12

Pagination or Media Count:

56.0

Abstract:

Gallium-doped germanium far infrared detectors manufactured by the Santa Barbara Research Center under NASA Contract have been evaluated at low temperatures and low background simulating the space environment. Signal and noise characteristics have been determined for detector temperatures in the 2K to 4K range. Optimum performance occurs at about 2.5K for all devices tested. The minimum average NEP in the 40-130 micron region has been found to be approximately 4 x 10 to the -17th power wattsq root 8 Hz at a frequency of 1 Hz. Author

Descriptors:

• *INFRARED DETECTORS
• *PHOTOCONDUCTORS
• *GERMANIUM
• LOW TEMPERATURE
• SPACE ENVIRONMENTS
• SIGNAL TO NOISE RATIO
• FAR INFRARED RADIATION
• GALLIUM
• DOPING

Subject Categories:

• Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE