Title: secondary electrons
Long Title: IUPAC Gold Book - secondary electrons
DOI: 10.1351/goldbook.S05518
Status: current

Definition
All electrons emitted from the surface of a solid except back scattered primary electrons. In practice, electrons emitted from the surface of a solid under particle bombardment which have a kinetic energy of less than \(50\ \rm{eV}\).

Related Term
- kinetic energy: https://goldbook.iupac.org//terms/view/K03402

Source
- PAC, 1983, 55, 2023. 'Nomenclature, symbols and units recommended for in situ microanalysis (Provisional)' on page 2026 (https://doi.org/10.1351/pac198355122023)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/S05518/html
- json: https://goldbook.iupac.org/terms/view/S05518/json
- xml: https://goldbook.iupac.org/terms/view/S05518/xml

Citation: Citation: 'secondary electrons' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.S05518
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Accessed: 2026-06-13T10:17:37+00:00