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DARK CURRENT [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-05-31

English

Subject field(s)
  • Photoelectricity and Electron Optics
  • Security Devices
  • Telecommunications
CONT

dark current. In the absence of light, charge accumulates in a well (pixel) due to thermal agitation. The background current which flows in a photodetector such as an image intensifier, or CCD [charge coupled device]. Usually it can be eliminated, when required, by cooling the photodetector's primary image pickup surface such as the photoconductor or photo-cathode.

French

Domaine(s)
  • Photo-électricité et optique électronique
  • Dispositifs de sécurité
  • Télécommunications
OBS

Courant de sortie d'un photodétecteur.

Spanish

Campo(s) temático(s)
  • Fotoelectricidad y óptica electrónica
  • Dispositivos de seguridad
  • Telecomunicaciones
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