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Time-delay-and-integration charge coupled devices /CCDs/ applied to the Thematic Mapper (1978)

Thompson, L. L. ; Mccann, D. H.

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Publication Date: 2019-07-13

Description: The visible focal plane of the Thematic Mapper, the next generation sensor system for application to earth resource survey, uses complex hybrid assembly techniques to interface silicon photodiodes to JFET preamplifiers. This complexity can be ameliorated by the use of a 20-channel time-delay-and-integration (TDI) CCD with nine stages of integration per channel. By going to a CCD array operating in a TDI mode, over 700 individual op amps can be replaced with only 48 op amps. Smooth spectral response and 70% quantum efficiency have been provided by using doped tin oxide gates over the imaging region.

Keywords: INSTRUMENTATION AND PHOTOGRAPHY

Type: Applications of electronic imaging systems; Seminar; Mar 30, 1978 - Mar 31, 1978; Washington, DC

Format: text

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