DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
ADA576456
Title:
Radiation Tolerance Characterization of Dual Band InAs/GaSb Type-II Strain-Layer Superlattice pBp Detectors Using 63 MeV Protons
Descriptive Note:
Conference paper
Corporate Author:
AIR FORCE RESEARCH LAB KIRTLAND AFB NM SPACE VEHICLES DIRECTORATE
Report Date:
2012-01-01
Pagination or Media Count:
6.0
Abstract:
The radiation tolerance characterization of dual band InAsGaSb type-II strain-layer superlattice pBp detectors of varying size using 63 MeV proton irradiation is presented. The detectors mid-wave infrared performance degraded with increasing proton fluence PhiP up to 3.75 x 10exp 12sq cm or, equivalently, a total ionizing dose500 kRad Si. At this PhiP, an 31 drop in quantum efficiency g, 2 order increase in dark current density JD, and consequently, 1 order drop in calculated detectivity D were observed. Proton damage factors were determined for g and D. Arrhenius-analysis of temperature-dependent JD measurements reflected significant changes in the activation energies following irradiation.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE