Vidicon

{
  "id": "MLC-T-CHM-012573",
  "term": "Vidicon",
  "field": "Chemistry",
  "definition": "A type of television camera tube used as a multichannel detector in spectroscopy, consisting of an electron gun and a photoconductive target within an evacuated glass envelope. An optical image focused on the target creates a pattern of varying electrical resistance, which is read by a scanning electron beam to generate a video signal. Vidicons were used in early diode-array spectrometers but have been largely replaced by charge-coupled devices.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "cathode",
    "irradiation"
  ],
  "references": [
    "PAC, 1995, 67, 1745. 'Nomenclature, symbols, units and their usage in spectrochemical analysis-XI. Detection of radiation (IUPAC Recommendations 1995)' on page 1757 (https://doi.org/10.1351/pac199567101745)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/vidicon/"
}