Kingdon trap

{
  "id": "MLC-T-CHM-006362",
  "term": "Kingdon trap",
  "field": "Chemistry",
  "definition": "An electrostatic ion trap consisting of a thin central wire anode and a coaxial cylindrical cathode, which confines ions radially within a logarithmic electric potential. Ions are trapped by the electrostatic field without the need for magnetic or radio frequency fields. This device is a component in certain types of mass spectrometers, such as the orbitrap, where image current detection is used to measure the ions' frequencies.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "image current detection"
  ],
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1559 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/kingdon-trap/"
}