Quadratic field reflectron

Term · Chemistry · MLC-T-CHM-013456

An ion mirror for a time-of-flight mass spectrometer whose potential grows as the square of the penetration depth, so the retarding field increases in direct proportion to depth. For an ideal mirror of this kind the flight time is independent of ion kinetic energy to every order. A single-stage linear-field reflectron, by contrast, focuses only to first order and so compensates a narrower spread of energies.

Table 1. Record
Identifier	MLC-T-CHM-013456
Field	Chemistry
Subject	Analytical Chemistry
References	PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1580 (https://doi.org/10.1351/PAC-REC-06-04-06)

Record as JSON

{
  "id": "MLC-T-CHM-013456",
  "term": "Quadratic field reflectron",
  "field": "Chemistry",
  "definition": "An ion mirror for a time-of-flight mass spectrometer whose potential grows as the square of the penetration depth, so the retarding field increases in direct proportion to depth. For an ideal mirror of this kind the flight time is independent of ion kinetic energy to every order. A single-stage linear-field reflectron, by contrast, focuses only to first order and so compensates a narrower spread of energies.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1580 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/quadratic-field-reflectron/"
}

Record 10,325 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.