G index

{
  "id": "MLC-T-CHM-004735",
  "term": "G index",
  "field": "Chemistry",
  "definition": "The power to which the intensity ratio of each mass peak is raised when two secondary ion spectra, acquired with different primary ion conditions, are combined to give the G-SIMS spectrum. The conditions are either well-separated beam energies for one primary ion species or two different primary ion species. Values between 0 and 40 are scanned during analysis, and 13 has been found to work well for producing spectra.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "G-SIMS",
    "primary ion"
  ],
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1839 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/g-index/"
}