Photomultiplier tube

{
  "id": "MLC-T-CHM-008893",
  "term": "Photomultiplier tube",
  "field": "Chemistry",
  "definition": "A highly sensitive vacuum tube detector that amplifies weak light signals by converting photons into electrons and then multiplying these electrons through a series of dynodes. Each dynode emits multiple secondary electrons for every incident electron, resulting in a large current gain. This device is widely used in spectroscopy and other light detection applications.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "acceleration",
    "anode",
    "cage",
    "channel",
    "responsivity",
    "resistance",
    "response time",
    "vacuum phototube"
  ],
  "references": [
    "PAC, 1995, 67, 1745. 'Nomenclature, symbols, units and their usage in spectrochemical analysis-XI. Detection of radiation (IUPAC Recommendations 1995)' on page 1753 (https://doi.org/10.1351/pac199567101745)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photomultiplier-tube/"
}