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  • Dark Count
    Next to the quantum efficiency, resolution (number of bits) and noise figure, this is perhaps the most important CCD specification. Dark count refers to that property of all CCD sensors to generate charge in each pixel on its own with time and depending on the temperature. The lower the temperature
  • Readout Noise
    , but by the CCD! Most applications are not read noise limited, but are limited more by background or dark noise.
  • Signal-to-Noise Ratio (SNR)
    The Signal-to-Noise Ratio (SNR) is the key parameter to predict the performances of an I2 tube in low light conditions. In the lowest light conditions, the image quality is highly dependent upon the light level. When it is very dark (below highly overcast starlight), even with the best tubes
  • A CMOS Active Pixel Image Sensor with In-pixel CDS for High-Speed Cameras (.pdf)
    and the photodiode area of 15 x 12.7µm2 is 34V/lux-sec. At 1000frames/sec, noise level is 2.43mVrms (dark). The noise level and the sensitivity are greatly improved compared with a 3Tr. type APS implemented with the same technology and a previous version of the APS with in-pixel CDS.
  • High-resolution CMOS imaging detector
    resolution required for the targeted interventional mammography. application. Direct coupling to the scintillator and a pixel fill factor of more than 80% leads to high DQE over a large range. of exposure values. The detector exhibits very low dark current of about 30 pA/cm2 at room temperature, which
  • MICRO: Product Technology News (October 2000)
    -to-edge definition and with good signal-to-noise ratios that are even better when dark-field techniques are employed. The microscopes are designed for viewing, imaging, and documenting wafers, photomasks, reticles, and a variety of substrates, either independently or in combination with a wafer loader
  • Make way for the Marauder
    because the Marauder, based on the Grand Marquis, takes a few design cues from its cousin theCrown Vic, a popular police cruiser. Mercury engineers also blacked-out nonfunctional areas of theheadlamp units and dark-tinted the taillamp bezels to give the Marauder a don't-mess-with-meappearance

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