Double-focusing mass spectrograph

{
  "id": "MLC-T-CHM-003410",
  "term": "Double-focusing mass spectrograph",
  "field": "Chemistry",
  "definition": "An instrument that combines an electric sector and a magnetic sector so that ions diverging in direction and spread in kinetic energy are brought to a focus, dispersed by mass-to-charge ratio, and recorded together on a photographic plate or film rather than detected electrically. The Mattauch-Herzog design places the whole mass range along one focal plane, which suited the spark-source analysis of trace elements.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "film"
  ],
  "references": [
    "PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1545 (https://doi.org/10.1351/pac199163101541)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/double-focusing-mass-spectrograph/"
}