Statistics – Applications
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2269..727f&link_type=abstract
Proc. SPIE Vol. 2269, p. 727-735, Infrared Technology XX, Bjorn F. Andresen; Ed.
Statistics
Applications
1
Scientific paper
Operation of the low-background IR extrinsic photoconductor detectors and detector arrays depends essentially on the process of spreading of the time-dependent photocurrent. The spreading occurs due to the low non-steady-state screening of electric charges in the detectors. It induces the next non-steady-state affects: the increase in the photoresponse time, the essential difference between the photocurrents in the circuits of the source contact injecting free carriers into the detector and of the contact which serves as a drain for the carriers, and the high cross talk in the detector array. The results of the experimental study of these effects and some other ones in 36- and 48-element linear arrays (Si:Ga) and their theoretical description are presented. The theory is in a satisfactory agreement with the experimental data. Some consequences of these results, which are important for the space-based-astronomy applications of extrinsic detectors, are discussed.
Fouks Boris I.
Kocherov Vasily F.
Taubkin Igor I.
Vinokurov Leonid A.
Zaletaev Nicolas B.
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