Nonuniformity Effects in a Hybrid Platinum Silicide Imaging Device
Final rept. Feb 1988-Jul 1991
ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER
Pagination or Media Count:
The objective of this project was twofold. The first objective was to characterize the Pughes Aircraft Company CRC-365 platinum silicide imaging device in a staring infrared sensor system. The CRC-365 is a hybrid 256 x 256 IR focal plane array that operates in the 3-5 micrometer thermal infrared band. A complete sensor and computer interface were built for these tests, using, plans provided by the Rome Laboratory at Hanscom AFB MA. Testing of the device revealed largely satisfactory performance, with notable exception in the areas of temporal response, temporal noise, and electrical crosstalk. The second objective of this research was to advance the understanding of how detector nonuniformity effects reduce the performance of sensors of this type. Notable accomplishments in this area included a complete linear analysis of corrected thermal imaging in platinum silicide sensors, a nonlinear analysis of the CRC- 365s expected performance, analysis of its actual performance when operated with nonuniformity correction, and the development of a new figure of merit. It was demonstrated that the CRC-365 is capable of maintaining background-noise-limited performance over at least a 40 K target temperature range, when operated with two-point nonuniformity correction. Infrared Focal Plane Array, Spatial Noise, Nonuniformity, 2D.
- Infrared Detection and Detectors