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Detectors: CCDs for Life-Science Applications

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The CCD camera is becoming the imaging method of choice in biological laboratories for its resolution, versatility and ease of use. Choosing the best CCD for a given application, however, requires knowing how basic chip parameters affect performance.

Butch Moomaw, Hamamatsu Corporation, Systems Div.

Since their invention in the late 1960s, charge-coupled devices, also called CCDs, have found widespread use in imaging applications. Electronic cameras based on CCD technology are used in applications from home video to medical imaging to astronomy. CCD cameras offer several advantages over film cameras: They can be connected directly to a computer, can be highly sensitive to low-light levels and their images are instantly available without film or dark-room processing. As their costs come down, CCD sensors are becoming essential tools for microscopists and biologists, though many...Read full article

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    Glossary
    astronomy
    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.
    infrared detector
    A device used to detect radiation from the infrared region. It may be a thermal detector, such as a bolometer, thermocouple or Golay cell, or it may be a solid-state photon detector. Infrared-sensitive phosphors may be used in the infrared, and some photographic films may be used in the very near infrared.
    charge-coupled device
    A charge-coupled device (CCD) is a type of electronic image sensor used in various imaging devices, including digital cameras, camcorders, and scientific instruments. It consists of an integrated circuit containing an array of light-sensitive pixels that convert photons (light) into electrical signals. The operation of a CCD involves several key components and processes: Pixel array: The CCD contains an array of pixels arranged in rows and columns. Each pixel consists of a photosensitive...
    astronomyFeaturesBasic ScienceCCD CamerasDetectors, Cameras & Imagingimage sensorsindustrialinfrared detectorSensors & Detectorscharge-coupled devicephotoelectricBiophotonics

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