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Detectors: The Charge Injection Alternative

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Charge-injection device (CID) technology provides a means to convert optical signals from 185 nm to 1100 nm to electronic charges that can be read out as a video signal or processed via computer. The CID imagers also are capable of directly (or indirectly) converting particle photons including electrons, ions, x-rays and other forms of ionizing radiation to measurable levels of electronic charge.

Tony Chapman, Thermo Fisher Scientific Inc., CIDTEC Cameras & Imagers

Charged-injection device imagers are metal-oxide semiconductor (MOS) detectors that can be fabricated using PMOS, NMOS and CMOS integrated circuit technology, and may be configured as a single-element, linear device or two-dimensional pixel arrays. Individual pixels are formed by coupled MOS capacitors sharing the same row and column electrode (Figure 1). Incident light on the surface of a pixel is converted to a proportional amount of signal charge that is collected and stored beneath the pixel surface. Pixel readout occurs by sensing the charge transfer between the capacitors within the...Read full article

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    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
    astronomyFeaturesBasic Sciencecharge-injection devicesCMOSDetectors, Cameras & ImagingindustrialpixelsSensors & DetectorsCID detectoroptical signal detectionCID imagermetal oxide semiconductor

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