Chromey, Frederick R. Department of Physics and Astronomy, Vassar College, Poughkeepsie, New York.
Last reviewed:October 2019
- MOS capacitor
- Characterization of Array Detectors
- Spectral response and discrimination
- Response time
- Size, pixel number, and array resolution
- Data handling
- General Operation and Properties of CCDs
- Readout time and read noise
- Dark current, cooling, and vacuum enclosures
- Charge-transfer efficiency
- Surface issues
- Processing Array Data
- Related Primary Literature
- Additional Reading
The production of a permanent two-dimensional record of a scene of interest to astronomy. In direct imaging, the scene is a section of the sky optically imaged with a telescope. In other types of imaging, the scene is the output of an instrument, often a spectroscope. Although astronomical images can be produced using light from any part of the electromagnetic spectrum, this article mainly concerns images made in the optical and near-infrared regions (wavelengths of 320–1000 nanometers). The overriding concerns in astronomical imaging are resolution, wavelength sensitivity, and above all, detective quantum efficiency.
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