Abstract
The spatial heterogeneity of spectral responses to the focal plane arrays (FPA) photosensitivity of different photosensitive elements based on CdHgTe (cadmium–mercury–tellurium—CMT) solid solutions is studied. The investigation methodology for spectral responses of photosensitivity is described. The distribution of the photosensitivity long-wavelength limit for a 6 × 576 bar of photosensitive elements (PSE) is presented. The average composition and the CMT composition measurement error for all elements of the bar are calculated. The computed error comparison of the photosensitivity long-wavelength limit of selected PSE and of the value of limit in the PSE array local area are made. The efficiency of FPA quality control express-methodology is in respect to distribution uniformity of CMT composition on the array area.
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